Understanding the Role of a Security Operations Center

What Are the Responsibilities of a Security Operations Center Team?

A security operations center (SOC) is essential for any organization in today’s data-driven world. A SOC is a group of cybersecurity experts responsible for monitoring and protecting an organization’s networks and information.

SOC teams play a critical role in keeping organizations secure. This article will discuss the SOC framework, how a SOC works, and the responsibilities of the various members of a SOC team.

What Is a Security Operations Center?

A SOC is comprised of specialized professionals trained in cybersecurity. Members of a SOC team may have education and experience in fields such as IT, computer science, and engineering.

While it’s not necessary for all members of a SOC to have a deep understanding of every aspect of cybersecurity, they should have a well-rounded working knowledge of the basics, since they are responsible for identifying and mitigating threats and responding to security incidents.

Job Roles in a Security Operations Center

A SOC team typically includes the following roles:

◉ Security analysts monitor the organization’s networks and systems for signs of security threats. They investigate any suspicious activity and take action to mitigate it.

◉ Incident responders are tasked with reacting to security incidents. They work with security analysts to identify and resolve any issues that arise.

◉ Systems administrators are responsible for maintaining the organization’s infrastructure by ensuring that all systems are running smoothly and securely.

◉ Network engineers are responsible for network infrastructure design, implementation, and troubleshooting.

What Are the Main Functions of a Security Operations Center?

The SOC framework is designed to help SOC teams effectively monitor and defend their organization’s networks and data. The main functions of a SOC team are as follows:

◉ Monitoring. SOC analysts monitor the organization’s networks and systems for signs of security threats. They look for any suspicious activity and take action to mitigate it.

◉ Threat intelligence. SOC analysts use threat intelligence to identify potential security threats. They track new threats and develop strategies to deal with them.

◉ Incident response. When a security incident occurs, the SOC team responds quickly and effectively to identify and resolve the issue.

◉ Security training. SOC analysts offer security awareness training for other staff members to protect the business from possible attacks (Koziol & Bottorff, 2021).

What Are the Benefits of Having a Security Operations Center Team?

In recent years, organizations have heavily invested in online software, tools, and databases, but with this digitization comes an increased demand for cybersecurity teams to protect these assets. As more and more confidential data points are exchanged online, cyber theft and malicious hacks have increased.

Having a group of individuals whose primary task is preventing cyberattacks is crucial for all organizations. SOC teams provide this protection and are an essential part of the security infrastructure for any organization that wants to keep its data safe.

With security such a significant concern in today’s digital environment, a dedicated SOC team is highly valuable to organizations. Here are some of the key benefits:

◉ Increased security. Businesses can strengthen their cybersecurity posture by having a team of experts dedicated to monitoring and protecting their networks and data.

◉ Reduced risk. A SOC can help reduce the risk of a security incident happening in an organization and mitigate damage if a breach does occur.

◉ Improved compliance. SOCs help organizations meet their compliance obligations by providing reports and evidence of their security measures.

◉ Reduced costs. Having a SOC can help organizations save money by reducing the number and severity of security incidents.

◉ Improved efficiency. A SOC can enhance the efficiency of an organization’s IT department by taking responsibility for cybersecurity and freeing up IT professionals to focus on other tasks.

By having a team of experts who can effectively monitor and respond to cyberthreats, businesses can reduce the number of security incidents they face. As data environments continue to become more complex, the need for knowledgeable SOC teams will only increase.

What Challenges Do Security Operations Centers Face Today?

SOCs have many responsibilities, and the SOC team can be easily overwhelmed if these issues are not properly managed. Some of the challenges faced by SOCs today include:

◉ Managing big data. SOCs are tasked with collecting and handling a vast amount of data (Kelley, 2022). This massive data can be a challenge for SOC teams, who may find it overwhelming to monitor and analyze.

◉ Keeping pace with new technologies. Cybersecurity is constantly evolving, and part of a SOC’s responsibility is to keep up with the latest changes in technologies and attack techniques to stay ahead of the curve.

◉ Finding qualified personnel. SOCs require a team of skilled analysts who can identify and mitigate security threats. Given the cybersecurity talent shortage, this can be difficult to find in today’s market (Li, 2021).

◉ The increasing complexity of data environments. The number of devices that an organization has on its network increases the complexity of the environment. As an organization scales, it becomes more challenging for SOC analysts to track and respond to security threats.

◉ The growing number of cyberattacks. The frequency of cyberattacks is increasing by the day, making it more difficult for SOCs to keep up.

Source: eccouncil.org

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The Six Types of Cyberattacks You’re Most Likely to Face

Do you know what the most common types of cyberattacks are? If you’re not sure, you’re not alone: Many people don’t know the different types of cyberthreats that are out there. But as more and more businesses move their operations online, it’s important to have the knowledge and skills necessary to protect yourself against cybercriminals.

In this article, we’ll cover some of the most common cyberattacks and explain how you can defend yourself against them. To learn more, check out EC-Council’s Certified Secure Computer User (C|SCU) certification, which is designed to teach you about the types of cyberattacks that you’re most likely to encounter. The C|SCU course covers a wide range of security topics, from avoiding identity theft to recognizing social engineering tactics.

1. Phishing Attacks

Phishing attacks are one of the most common types of cyberattacks. These occur when cybercriminals send emails that appear to be legitimate but are actually designed to manipulate the recipient into providing sensitive information, clicking on a malicious link, or downloading a malicious attachment.

Read More: EC-Council Certified Security Analyst (ECSA v10)

Attackers can successfully pull off a phishing attack by sending a message that contains an urgent request for help, which tricks users into clicking on a link that will supposedly provide additional details or direct them to the correct location. Phishers may also execute attacks by creating websites that look extremely similar to legitimate ones; if a user isn’t paying close attention, it can be easy to mistake the fake website for the real one.

2. Social Engineering Attacks

Social engineering attacks are another common form of cyberattack. Social engineering techniques attempt to trick individuals into providing sensitive information to an attacker or enabling the attacker to use their computer for the attacker’s purposes without the user’s knowledge.

This kind of attack requires not just technical knowledge but also a certain level of social skills on the part of the attacker. Unlike most other cybercrime methods, social engineering relies almost entirely on human interaction. Social engineering is also one of the most challenging types of cyberattacks to prevent because it’s not always easy to identify that an attack is taking place.

3. Ransomware Attacks

A ransomware attack starts when hackers take control of a target’s computer and encrypt the files stored on it. The attacker then demands that the target pay a ransom to decrypt the files, usually in the form of an untraceable means of payment, such as Bitcoin.

This type of cyberattack is typically carried out using Trojans or another type of malware spread using phishing emails or social engineering techniques. Ransomware costs businesses more than $75 billion per year, according to PurpleSec’s (2021) ransomware statistics report.

4. Malware and Virus Attacks

Cybercriminals often attempt to install malware or a virus on a target’s computer to gain access to it and use it for their own purposes—for example, launching an attack against another machine or network. According to Purple Sec’s (2021) malware statistics, 92% of malware is delivered by email.

If you find that your computer is running much more slowly than usual or is crashing frequently, an attacker might be using it without your knowledge. If you notice any unusual activity on your machine, try to figure out what’s causing the problem as soon as possible. To protect yourself against malware and virus attacks, it’s important to keep all of your antivirus and security software up to date and to practice safe browsing habits.

5. Denial-of-Service (DoS) Attacks

A denial-of-service (DoS) attack is one of the most common types of cyberattacks. DoS attacks are designed to take an online resource offline by flooding it with so much traffic that it crashes or becomes extremely slow. Cybercriminals might carry out DoS attacks because they want to gain access to information stored on a machine or website or to disrupt the activities of the person or organization responsible for running the targeted resource.

If you’re responsible for managing websites or machines that store important data, try using services like Elastic Compute Cloud (EC2) and Amazon Web Services (AWS) to protect your resources against DoS attacks. EC2 and AWS provide automatic scaling options that increase server capacity as you experience more traffic, making it more difficult for attackers to successfully carry out a DoS attack.

6. Spyware and Adware Attacks

Spyware and adware cyberattacks often go undetected. These forms of attacks generally involve the installation of software applications on a user’s computer without their knowledge or consent. Cybercriminals typically carry out these types of attacks because they want to use the target’s machine for their own reasons, such as engaging in cyber espionage or delivering ads for products that generate revenue for the attackers.

You can protect yourself against spyware and adware by keeping your antivirus and security software up to date, avoiding suspicious websites and apps, and regularly checking your browser settings to make sure they haven’t been changed without your knowledge.

Source: eccouncil.org

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How to Prevent Network Security Attacks

Five Ways to Defend Against Network Security Threats

Businesses of all sizes are susceptible to network security threats. Since hackers and cybercriminals are always looking for new ways to exploit network vulnerabilities, business owners must take steps to protect their data and infrastructure. This article will discuss five ways to prevent network security threats.

The Importance of Network Security

Before we discuss specific methods for thwarting network threats, it’s essential to understand the importance of network security. Having a secure network is vital to protecting data and preventing unauthorized access to systems. Additionally, maintaining a secure network can be part of meeting compliance requirements and protecting brand reputation (Bailkoski, 2021). Businesses that neglect network security are more likely to experience data breaches, which can be costly and damaging.

Common Network Security Threats

Businesses can face many types of threats to their networks. Some of the top network security risks include:

◉ Malware. Malware is a term used to describe a wide range of malicious software, including viruses, trojans, and spyware. Malware can be installed on a system without the user’s knowledge, where it can then cause damage or steal data.

◉ Spyware. Spyware is software that collects information about a user without their knowledge. It can track what websites a target visits and collect sensitive data, like passwords and credit card numbers.

◉ Phishing. Phishing attacks involve sending fraudulent emails or text messages to obtain sensitive information from recipients. The messages may appear to come from a legitimate source, such as a bank or credit card company, but are in reality sent by scammers.

◉ Ransomware. Ransomware is malware that locks users out of their computer or mobile device until a ransom payment is made. Ransomware viruses can be challenging to remove and can damage or delete files on a user’s system.

◉ Distributed Denial-of-Service (DDoS) attacks. A DDoS attack is one of the most dangerous types of security threats (Mathew, 2021). It is a type of cyberattack in which multiple systems flood a target with traffic, making it unavailable for legitimate users. DDoS attacks can be very costly and difficult to defend against.

How to Prevent Network Attacks

There are many different ways to defend against network-related threats. Here are five of the most effective methods.

1. Install antivirus software.

One of the first lines of defense against malware and other viruses is to install antivirus software on all devices connected to a network (Roach & Watts, 2021). Antivirus software can detect and prevent malicious files from being installed on a system, and it should be updated regularly to include the latest definitions.

2. Create strong passwords.

Another essential step in protecting a network is to create strong passwords. Passwords should be at least eight characters long and include a mix of letters, numbers, and symbols. They should also not be easy to guess—for instance, the user’s name or the name of the company.

3. Enforce security policies.

A third way to reduce risk of attacks on a network is to enforce security policies. Security policies can help ensure that all devices on a network are protected against viruses and malware and that users are using strong passwords. These policies can also restrict access to some network regions and limit user privileges.

4. Use firewalls.

Firewalls are another essential tool in defending networks against security threats. A firewall can help prevent unauthorized access to a network by blocking incoming traffic from untrusted sources. Additionally, firewalls can be configured to allow only certain types of traffic, such as web traffic or email.

5. Monitor activity.

Finally, it’s important to monitor activity on the network. Tracking logs and other data enables suspicious activity to be identified quickly, allowing security personnel to take steps to investigate and mitigate potential threats.

Consequences of Network Breaches

Network security breaches can have severe consequences for businesses, including:

◉ Data loss. A network security breach can result in the loss of sensitive data, such as customer information or financial records.

◉ Damage to reputation. A breach can also damage a company’s reputation and make it difficult to regain the trust of customers and other stakeholders.

◉ Loss of revenue. In some cases, a network security breach can lead to a loss of revenue as customers take their business elsewhere.

◉ Increased costs. Breaches can also lead to increased costs, such as hiring new staff or upgrading security systems.

How to Become a Network Security Engineer

If you want to learn more about how to protect networks against security threats, consider enrolling in a network security certification course with accredited program provider EC-Council. EC-Council’s Certified Network Defender (C|ND) program is designed to cover everything you need to know about network security protection, from the basics to advanced techniques.

The C|ND is designed to provide cybersecurity professionals with the knowledge and skills they need to defend networks against various security threats. The program covers a wide range of topics:

◉ Network security concepts. Get introduced to common security concepts, including viruses, malware, and firewalls.

◉ Network security threats. Learn about different network security threats, how to protect networks against them, and how to gain security access control.

◉ Operating system security. Understand the various features that can be used to secure Windows and Linux systems.

◉ Application security. Find out how to secure applications like web browsers and email clients.

◉ Networking fundamentals. Explore key networking concepts, such as TCP/IP packets and switches.

◉ Endpoint security. Learn about the different types of security measures that can be used to protect endpoint devices like laptops and smartphones.

◉ Traffic analysis. Become proficient in using tools like Wireshark to analyze network traffic and detect security threats.

◉ Incident response. Find out the steps that should be taken in the event of a security incident.

◉ Forensic investigation. Learn what occurs in the digital forensic investigation process, including how to collect evidence and identify the source of a security breach.

Source: eccouncil.org

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How Penetration Tests Can Prevent Social Engineering Attacks

How Can Penetration Testing Prevent Social Engineering Attacks?

Sensitive information is everywhere, from the databases of the world’s largest corporations to the social media pages of everyday individuals. Cybercriminals actively seek to acquire this data through social engineering techniques.

Since successful cyberattacks can be extremely costly for organizations, it’s essential to understand how to combat social engineering tactics. Read on to learn more about social engineering attacks and how penetration testers can prevent cybercrime.

What Is Social Engineering?

Social engineering includes a wide range of tactics that malicious hackers implement to acquire information from a target (Suraj, 2021). Essentially, perpetrators of social engineering attacks manipulate users into giving them confidential data, such as passwords or bank information, or access to computers, networks, or applications.

How Do Social Engineering Attacks Happen?

Cybercriminals often use a series of social engineering techniques to scam and manipulate their targets.

Social Engineering Techniques

1. Baiting

Baiting refers to the practice of tricking an intended target into providing sensitive data to malicious websites or applications with the false promise of a reward, such as a financial incentive.

2. Scareware

Scareware involves cybercriminals sending fake threats to individuals to frighten them into handing out their data. Scareware prompts users to install software that claims to protect their system but, in reality, is itself malware.

3. Pretexting

Pretexting occurs when cybercriminals impersonate coworkers, police officers, bankers, or other officials and ask targets to provide personal data, records, or information. Attackers work to establish trust with their targets by acting as authority figures.

4. Phishing

Phishing—a very common social engineering technique—is the practice of sending emails or text messages to targets and prodding them to provide sensitive information or follow links that may contain malware.

5. Spear Phishing

In spear phishing, a subtype of phishing, an attacker hones in on a specific target individual by posing as a family member, friend, or coworker. In this type of social engineering attack, the cybercriminal may pretend to be part of a company, such as an IT consultant, to coax a high-priority target into providing sensitive business data and information.

Defense Against Social Engineering Attacks

One strategy used to prevent social engineering attacks is penetration testing. During a penetration test, an authorized cybersecurity expert checks for security vulnerabilities within an organization’s networks, applications, systems, and devices. Penetration testers are responsible for identifying existing cybersecurity issues—including susceptibility to social engineering techniques—so that these problems can be fixed before cybercriminals can take advantage of them to successfully launch cyberattacks.

Source: eccouncil.org

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Top Penetration Testing Techniques for Security Professionals

Exploring Next-Generation Penetration Testing Techniques in the C|PENT Course

Cybersecurity has become critical as the need to protect digital infrastructure, personal data, and business operations grows. Cybersecurity professionals are always in demand, but to stay ahead of the curve, they need to keep up with the latest technologies, including advanced penetration testing techniques. This article will discuss some of the next-generation penetration testing techniques taught in EC-Council’s Certified Penetration Testing Professional (C|PENT) certification program.

What Is Penetration Testing, and Why Do Organizations Need It?

Penetration testing attempts to exploit vulnerabilities in a system or network to identify security issues. It is used to assess the security posture of a system or network and can help organizations find and fix weaknesses before attackers exploit them. Penetration testing should be part of any organization’s cybersecurity program, particularly if malicious actors have previously compromised its systems.

At-Risk Industries and Technologies

Many industries are at risk of cyberattacks. Some of the most commonly targeted sectors include the following.

Read More: EC-Council Certified Encryption Specialist (ECES)

◉ Healthcare organizations are attractive targets for attackers due to the sensitive nature of patient data. Attackers may attempt to gain access to this data to sell it on illicit markets or use it to extort an organization.

◉ Banks and financial services providers are prime targets for cybercriminals due to the large amounts of money they handle. Attackers may attempt to steal customer information or financial data, which can be used to commit fraud or identity theft.

◉ Cloud services are becoming increasingly popular due to their many benefits, but they also entail an elevated risk of cyberattacks (Aggarwal, 2021). Since cloud providers host sensitive data and applications for their customers, they are appealing to attackers.

◉ Government agencies and organizations are often targeted by nation-state actors and other groups with political motivations. These attackers may attempt to access sensitive government data or disrupt critical infrastructure.

◉ Energy and utilities companies are prime targets for attackers who may want to disrupt the flow of electricity or oil. These attacks can have a significant impact on the economy and public safety.

In addition, certain technologies are also particularly appealing to malicious hackers.

◉ Internet of Things (IoT) devices are a growing trend and are ripe for cyber exploitation. As more devices connect to the internet, they become susceptible to cyberattacks. Hackers can exploit vulnerabilities in IoT devices to gain access to sensitive data or take control of the device.

◉ Supervisory control and data acquisition (SCADA) systems and web applications are also common targets for attackers, as they are often not well protected and contain sensitive data or functionalities. Attackers can exploit vulnerabilities in SCADA systems and web applications to gain access to data or control of the system.

◉ Databases are valuable targets for attackers, particularly when they contain a large amount of sensitive data that can be used for identity theft, financial fraud, or other malicious activities. Attackers may exploit vulnerabilities in the database software or the underlying infrastructure.

The Top Penetration Techniques Used by Cybersecurity Professionals

EC-Council’s C|PENT certification course covers the latest techniques used in penetration testing.

Advanced Windows Attacks

This module covers advanced attacks against Windows systems. It deals with topics such as Active Directory exploitation, Kereberoasting, and Pass-the-Hash attacks.

◉ Active Directory exploitation enables attackers to gain access to sensitive data and take control of systems, making Active Directory a common target for hackers.

◉ Kerberoasting extracts password hashes from Active Directory. This information can be used to crack passwords or perform Pass-the-Hash attacks.

◉ In a Pass-the-Hash attack, a hacker authenticates using the hash of a user’s password, which they can then use to gain access to systems and data without having the actual password.

Internet of Things Hacking

This module focuses on attacks against IoT devices and systems and includes topics such as embedded device hacking and wireless attacks.

◉ Successfully hacking embedded devices can give hackers access to the data and functionality of these devices. This information can be used to perform attacks against the underlying system or network.

◉ Wireless networks are often targeted in IoT cyberattacks. By understanding how to exploit vulnerabilities in wireless networks, hackers can gain access to sensitive data or take control of IoT systems and devices.

Bypassing a Filtered Network

This module looks at techniques for bypassing firewalls or other network security measures. It covers topics such as port forwarding, tunneling, and DNS cache poisoning.

◉ Port forwarding can be used to bypass firewall restrictions, thus enabling access to the systems or data behind the firewall.

◉ Tunneling is a technique that can encrypt traffic and bypass security measures. Understanding how to tunnel traffic offers another means of accessing data or taking control of systems.

◉ DNS cache poisoning is a technique used to redirect traffic from one system to another (Raymond, 2021). Poisoning the DNS cache can reroute traffic from a legitimate site to an attacker-controlled site.

Operational Technology Penetration Testing

This module covers the assessment of operational technology (OT) systems. It deals with topics such as SCADA system security, industrial control systems (ICS) and SCADA malware, and OT network analysis.

◉ A thorough understanding of SCADA system security is necessary to identify vulnerabilities in these systems. This information can be used to perform attacks against the underlying system or network.

◉ Malware designed for ICS and SCADA systems can be used to take control of these systems.

◉ OT networks are often different from other types of networks. Understanding the unique aspects of how OT networks work enables hackers and penetration testers to identify vulnerabilities that can be exploited to perform Denial-of-Service attacks against these networks.

Double Pivoting

This module looks at the use of double pivoting to access hidden networks. It covers topics such as using two pivot points for reconnaissance and using Metasploit to pivot through two systems.

◉ Hidden networks can be accessed by using two pivot points for reconnaissance. This information can be used to find vulnerabilities in associated systems.

◉ Metasploit is a penetration testing software framework that can exploit vulnerabilities via double pivoting, among other techniques.

Privilege Escalation

This module covers techniques for escalating privileges on a system. It covers topics such as Windows and Linux privilege escalation and how to use Metasploit to escalate privileges.

◉ Privilege escalation is a technique that increases the access of a low-privileged user to a system, allowing them to access files only viewable to users with elevated privileges. By understanding how to escalate privileges, penetration testers can improve their chances of taking control of a system.

Weaponizing Exploits

This module covers the use of Metasploit to create and deliver exploits. It covers topics such as creating payloads, setting up listeners, and delivering exploits.

◉ A payload is the component of an exploit that is used to achieve the desired outcome. This could be anything from launching a Denial-of-Service attack to stealing data. Understanding how to create payloads can enable penetration testers to deliver exploits that control a system.

◉ Listeners are programs used to receive information from systems that have been compromised.

◉ Exploits are tools that can take control of systems. These include buffer overflow exploits and SQL injection exploits. By understanding how to deliver exploits, penetration testers can gain access to sensitive data or take control of systems.

Cloud Penetration Testing

This module covers the assessment of cloud-based systems. It includes topics such as assessing cloud security, attacking cloud applications, and detecting malicious activity in the cloud.

◉ Assessing the security of cloud-based systems is an essential aspect of protecting data (Grange, 2021). Understanding how to evaluate the security of a cloud-based system is key to preventing data from being accessed by unauthorized users.

◉ Cloud applications are often vulnerable to attack. It’s therefore essential for penetration testers to know how to attack cloud applications to gain access to sensitive data or take control of systems.

◉ Since the cloud is a common target for attackers, knowing how to detect malicious activity in the cloud is an important way for penetration testers to stop hackers from causing damage.

Wireless Penetration Testing

This module covers the assessment of wireless networks. It covers topics such as wireless network discovery and cracking WEP/WPA/WPA-PSK keys.

◉ Wireless networks are often exposed to attack. Different types of wireless networks have different security protocols, so it’s essential to know which kind of network you’re dealing with. By understanding how to discover wireless networks, penetration testers can identify them and assess their security.

◉ Cracking WEP/WPA/WPA-PSK keys is essential for gaining access to wireless networks. By cracking these keys, hackers and penetration testers can gain access to sensitive data or take control of the network.

Binary Analysis and Exploitation

This module covers the analysis of flawed binaries, including static analysis, dynamic analysis, and reverse engineering.

◉ Static analysis is essential for understanding how code works before a program is actually run. Penetration testers can use static analysis to identify flaws in code before they can be exploited.

◉ Dynamic analysis is the process of observing a program’s execution. This can be done through tools such as debuggers and emulators. Dynamic analysis differs from static analysis in that the former can be used to observe a program’s execution and identify vulnerabilities in real time.

◉ Reverse engineering is vital for understanding the internal workings of a program. By understanding how to reverse-engineer code, penetration testers can find vulnerabilities in a binary that can be exploited.

Source: eccouncil.org

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Six Best Practices for Secure Network Firewall Configuration

Network firewalls provide an essential aspect of network security by monitoring traffic and preventing unauthorized traffic from accessing systems. Reliable network firewall security doesn’t automatically happen when an organization adds a firewall to its IT ecosystem, however. Follow these six best practices for firewall configuration to improve network security and protect organizations from malware and other types of attacks.

Read More: EC-Council Certified Chief Information Security Officer (CCISO)

1. Configure Network Firewalls to Block Traffic by Default

Even when IT teams do their best to follow firewall configuration best practices, they risk missing vulnerabilities that malicious actors can exploit. Setting firewall security to block traffic by default helps address this problem. When IT teams block all unknown traffic trying to access the network, they make it much more challenging for unethical hackers to infiltrate the system.

2. Follow the Principle of Least Privilege

Of course, some people will legitimately need access to an organization’s network. Organizations can configure their network firewall security to allow authorized users, but that doesn’t mean that cybersecurity teams need to give them unlimited access. Each account should only have access to the files and tools necessary to do the user’s job.

For example, an account belonging to a third-party vendor that fulfills orders only needs access to information about purchased products and where to send them. The vendor does not need any information about business processes, customer payment records, or other sensitive data. Following the principle of least privilege will ensure that all types of firewalls are able to secure the network more effectively.

3. Specify Source IP Addresses Unless Everyone Needs Access

In rare cases, IT teams might want to give everyone access to a part of the network. In these cases, they can configure their source IP addresses as ANY—for example, to let anyone visit a business’s website.

If you don’t want everyone on the internet to have access to a part of the network, however, specify the source IP addresses. Taking this step will limit the IP addresses to which traffic can connect.

4. Designate Specific Destination Ports

Always make sure that your organization’s firewall network configuration designates specific destination ports for connected services. Perhaps a business has a destination port that lets authorized users access client contact information. In that case, establish that destination port as the source of that data and only let authorized accounts connect to it.

5. Open the Firewall Ports That Users Expect

Take the time to learn which ports users expect to find open when they try to access networks. The ports that IT teams open will depend on a few factors, such as the services and data that users tend to access and the types of servers and databases that the organization uses. You can find more information about Microsoft server ports here (Czechowski et al., 2022) and Linux server ports here (Kumar, 2021).

6. Designate Specific IP Address Destinations

Designating specific IP address destinations serves a similar purpose as designating destination ports. Organizations want to limit access to IP addresses to prevent unauthorized traffic from entering their networks.

Additionally, this type of firewall network protection can help prevent distributed Denial-of-Service (DDoS) attacks. DDoS attacks have become increasingly common, especially in the United States, the United Kingdom, and China (Sava, 2022). Implementing defenses against this type of attack is key to ensuring that customers, vendors, and employees can maintain access to the network.

Source: eccouncil.org

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Digital Threats and Cyberattacks at the Network Level

An enterprise network helps ensure that business workflow is efficient and easy to maintain. However, owing to the complexity and large size of such networks, security threats can enter through interconnected endpoints (Geeks for Geeks, 2021). Once malicious parties gain entry into an organization’s network and internal systems, they can cause serious harm and steal sensitive data.

Types of Network Attacks

Network-level attacks can be either passive or active. In a passive attack, malicious agents gain unauthorized network access and steal sensitive data without altering it. They simply want to use their theft to profit by accessing client accounts or selling information to other bad actors.

An active network attack, in contrast, is a bit more like vandalizing a building. In an active network attack, the attacker gains access to a network and modifies or damages the data stored there—for example, by deleting or encrypting it.

Network-level attacks differ from other types of software- and hardware-related attacks. Malicious hackers executing network attacks often aim to gain access to an organization’s network perimeter and thereby its internal systems.

Once they have this access, they can launch other types of attacks. These digital threats include:

◉ Malware attacks. These attacks use malware to infect an organization’s IT resources. The attacker can then compromise the network and systems and damage vital information.

◉ Advanced persistent threats (APTs). An APT is a sustained, intricate cyberattack that leaves an undetectable presence in a computer network, allowing cybercriminals to steal information and affect computer operations over a long period of time (CrowdStrike, 2021).

◉ Vulnerability exploits. These attacks take advantage of vulnerabilities within an organization’s software to gain unauthorized access, which is then used to compromise business systems.

◉ Endpoint attacks. These are attacks in which hackers obtain unauthorized access to endpoints within a network. These endpoints may include servers or user devices, which can then be attacked with malware.

Common Forms of Network Attacks

Unauthorized Access

Attackers gain network access without permission from the concerned parties thanks to compromised accounts, weak passwords, and insider threats.

Malware

Perpetrators can corrupt network data and system files via malicious software known as malware (Geeks for Geeks, 2021). Several common types of malware include:

◉ Computer viruses. This malware spreads quickly between computer devices. Computer viruses can be brought into a network system via email downloads or website downloads. Once inside, the malware quickly moves to steal vital data or harm the network.

◉ Computer worms. This malicious software moves from computer to computer in a network, quickly replicating as infected files are shared.

◉ Ransomware. Ransomware is malware that infects a network and prevents users from accessing files until a ransom is paid to the hackers.

Phishing

Phishing is an email method used to trick internet users into revealing personal and financial data (Federal Trade Commission, 2019). These phishing emails usually claim to come from a legitimate source and ask for private information. Unwary users may provide their social security numbers, bank account numbers, and other sensitive information.

OnPath Attacks

In an OnPath network attack (also known as a “man-in-the-middle” attack), a malicious party attempts to intercept a private dialogue to direct the theft of sensitive information (National Institute of Standards and Technology, 2020). These tactics allow hackers to gain access to important files.

SQL Injection

Poorly designed websites are prone to SQL injection attacks. This tactic allows bad actors to change queries to a database. In this way, hackers can corrupt applications so that they harm a target network.

Denial of Service

Denial-of-Service (DoS) attacks attempt to cause a website to crash due to a malicious and unwarranted overload of traffic, thereby denying access to legitimate users.

Other types of network attacks include browser-based attacks, such as cross-site scripting, and password-spraying attacks, which use brute-force techniques to gain account access (Ranjan, 2021).

How to Protect Your Network

◉ Always use strong passwords and change them often for additional security.

◉ Use internal IP addresses instead of those assigned to free public networks.

◉ Set up a firewall to block malicious attacks.

◉ Encrypt sensitive personal data into ciphertext readable only by authorized users.

◉ Install antivirus software on all network devices to protect against computer worms, viruses, and other digital threats.

◉ Mark all suspicious attachments and emails as spam. Don’t open these attachments if you’re at all unsure of their origins.

◉ Use an encrypted connection instead of vulnerable networks like Wi-Fi hotspots.

◉ Set up a virtual private network (VPN) to mask your internet activity.

◉ Ensure that employees are regularly trained on the various types of network attacks and what can be done to prevent them.

◉ Utilize deception technology to place decoys throughout your network. These decoys will provoke attacks and allow you to closely observe hackers’ techniques.

Source: eccouncil.org

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