Mobile Device Forensics in the Evolving World of Electronics

Here’s what you need to know about mobile device forensics:

• Mobile device forensics is a subfield of digital forensics that extracts and analyzes data from mobile devices in a forensically sound manner.
• The four stages of the mobile device forensics process are seizure, acquisition, analysis, and reporting
• Mobile device forensic analysts must be technically skilled and familiar with the legal issues surrounding digital evidence.

Digital technologies occupy an ever-increasing role in our lives. According to a 2021 Pew Research survey, 85 percent of people in the United States now own a smartphone—up from just 35 percent in 2011 (Pew Research, 2021). With millions of smartphones and other mobile devices in use daily, it’s no surprise that these gadgets contain massive quantities of potentially valuable information. Recovering, processing, and analyzing this information is the job of a mobile device forensic analyst. So, what is mobile device forensics exactly, and what are the benefits and use cases?

What is Mobile Device Forensics?

Mobile device forensics, also known as mobile forensics, is a subfield of digital forensics that involves extracting information from a mobile device (such as smartphones and tablets) in a forensically sound manner. The information obtained via mobile device forensics may include deleted files, application data, GPS data, call logs, text messages, and photographs and videos.

Like other domains of forensics, mobile device forensics is commonly used to recover evidence in connection with a criminal investigation. As such, mobile device forensic investigators must take care to retrieve and analyze data that is legally admissible as evidence.

Mobile device forensics has connections with other branches of digital forensics—such as network forensics, computer forensics, and malware analysis—in terms of the knowledge and skill set required. However, the distinguishing feature of mobile device forensics is that the extracted data is located on a mobile device.

Therefore, mobile device forensic analysts must be intimately familiar with mobile devices and their operating systems and file systems. They should also have experience with various software and hardware tools for extracting data from mobile devices. Finally, mobile device forensic analysts should have strong problem-solving and critical thinking skills and knowledge of the legal issues surrounding collecting data from mobile devices.

The Process of Mobile Device Forensics

There are four general steps to follow during a forensic investigation: identifying the evidence, acquiring the evidence, analyzing the evidence, and producing a forensic report. Below are these four steps as they pertain to the process of mobile device forensics:

1. Device seizure: First, the mobile device is seized from its user. At this stage, investigators should also start documenting the chain of custody. For example, the records of who handled the device and when. A search warrant is usually required if the device is used in a criminal investigation.
2. Device acquisition: Investigators create a sector-level duplicate of the device, a process known as “imaging” or “acquisition.” This duplicate image and the original device are passed through a hashing function, and their outputs are compared to ensure that it is an exact copy. Next, analysts decide on the investigation’s proper approach and goals.
3. Device analysis: Investigators begin work on the device image to confirm a hypothesis or search for hidden data. Specialized tools (such as those described in the next section) are used to help find and recover information. Data may be located within the accessible hard disk space, deleted (unallocated) disk space, or the operating system cache.
4. Reporting: After acquiring the data, investigators store and analyze it to reconstruct a plausible version of events. A report is prepared, which may be technical or non-technical, depending on the audience.

Mobile Device Forensics: Tools and Techniques

Mobile device forensic analysts use various tools and techniques to analyze devices. For example, there are multiple ways to extract information from a mobile device:

• Logical extraction: The device is connected to a forensics workstation via a hardware cable or a protocol such as Bluetooth. This approach is quick and relatively straightforward but also the most limited. Logical extraction tools include Oxygen Forensic Device Extractor and XRY Logical.
• Physical extraction (hex dump): The device’s flash memory is copied bit by bit. This approach is the most extensive but technically complex and dependent on the manufacturer. Physical extraction tools include Cellebrite UFED Physical Pro and XRY Physical.

Once a copy of the device has been made, investigators use other mobile device forensic tools to capture and analyze the data. OpenText EnCase Forensic and ILOOKix are two examples of digital forensics software applications for analyzing hard drives and mobile devices and recovering data and metadata.

What are the Scope and Uses of Mobile Device Forensics?

Mobile device forensics has three primary use cases: law enforcement, civil proceedings, and cybersecurity.

• Law enforcement: Mobile device forensics is a critical tool for law enforcement agencies. In many cases, the data on a mobile device can provide crucial evidence in a criminal investigation.
• Civil investigations: Mobile device forensics can also assist civil proceedings and litigation. Digital forensic investigators have successfully used data in various civil cases, including contract violations, whistleblower allegations, and divorce and custody.
• Cybersecurity: Cybercriminals use many different entry points to gain access to a network, including mobile devices. Forensic investigators can use mobile device forensics to reconstruct an attack and understand how malicious actors exploit security vulnerabilities on the device.

The Benefits and Challenges of Mobile Device Forensics

There are a wide range of benefits of mobile device forensics. Mobile device forensics can often recover information deleted or hidden on a device, providing critical evidence in an investigation. As a branch of forensics, mobile device forensics also ensures that the data extracted by investigators is admissible in court.

Despite the advantages of mobile device forensics, the field also has challenges. Mobile devices, their operating systems, and the tools and techniques used to analyze them constantly evolve. Forensic analysts also need to strictly adhere to the applicable laws, regulations, and protocols to ensure their conclusions can be used in an investigation.

Source: eccouncil.org

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A Sneak Peek into the EC-Council CHFI Certification Salary

Due to the increasing technological sophistication of cyber criminals and their more frequent distribution of malicious code to computers around the globe, the online world has become a perilous environment. Companies worldwide hire cyber crime experts who can think creatively to prevent network intrusions, identity theft, data theft, and other related crimes. Among the most highly sought-after certifications for cyber crime specialists in today's world is the Computer Hacking Forensic Investigator - CHFI certification.

Obtaining the Computer Hacking Forensic Investigator certification enables professionals to acquire expertise and understanding in particular security areas of computer forensics, such as Password Cracking Concepts, log capturing tools, wireless attacks, network traffic, Access Data FTK, and numerous other related topics.

Why Is EC-Council CHFI in Such High Demand?

The CHFI certification is granted by EC-Council, also recognized as the International Council of E-Commerce Consultants. It's a comprehensive and thorough certification program that equips experts with the skills to identify and respond to hacker attacks using a variety of evidence-gathering techniques, reporting the crime, performing audits, and implementing necessary measures to prevent future attacks.

After obtaining the EC-Council Computer Hacking Forensics Investigator certification, professionals acquire additional qualifications as they are capable of fulfilling the diverse standards of CNSS 4011-4016 Federal Security Certification Training. Consequently, companies are willing to provide attractive remuneration packages to qualified candidates.

CHFI Certification Salary

Professionals with EC-Council CHFI certification can expect to earn an annual salary between $85,000 and $120,000 on average.

Individuals with over five years of experience in managing challenging projects and working in the same industry can anticipate receiving higher salary packages. The remuneration not only depends on their experience but also on the type of employer and their specific skills or expertise.

Companies are looking for individuals who hold a CHFI certification to manage diverse areas of cybersecurity, which include conducting investigations on cybercrime, assessing digital evidence, securing and analyzing electronic crime scenes, retrieving erased files, utilizing techniques such as Steganalysis, managing logs, and investigating email-related crimes.

Positions Available for EC-Council CHFI Certified Professionals

Starting roles for individuals with CHFI certification consist of positions such as information security analyst and forensic computer analyst, both with an average minimum salary of $53,717 and $37,340, respectively.

Intermediate and advanced level job positions consist of Security Engineer, Information Security Engineer, and IT Director.

What Distinguishes CHFI From Other Cybersecurity Certifications

EC-Council CHFI certification primarily focuses on analytical methods, forensic tools, and different procedures utilized in detecting, safeguarding, preserving, and analyzing computer forensic evidence. The fundamental objective is to equip certified professionals with the ability to implement various computer investigation and analysis techniques to identify potential legal evidence.

The CHFI certification program has received accreditation from the Committee on National Security Systems (CNSS) and the National Security Agency (NSA). Additionally, the National Infocomm Competency Framework (NICF) recognizes the certification as a requirement for professional competency.

As the internet remains an integral part of society and cybercrime continues to increase, CHFI certification provides numerous opportunities for professionals. With cybersecurity becoming a growing concern for organizations worldwide, individuals with Computer Hacking Forensic Investigator certification can anticipate a future of career growth and advancement.

Related Read: CHFI Certification Value: Why You Need the Certification?

Who Can Benefit From Acquiring CHFI Certification?

The group of professionals who should pursue CHFI certification includes:

IT managers

Law enforcement personnel

e-Business Security professionals

Legal professionals

Systems administrators

Insurance, Banking, and other professionals

Government agencies

Defense and Military personnel

Looking for CHFI Certification?

To earn CHFI certification, passing the CHFI exam is a requirement, which assesses knowledge in areas such as gathering, analyzing, and presenting digital evidence; computer and network forensics; investigating cybercrime; and understanding legal aspects related to forensics.

Prior to attempting the CHFI exam, you shoud meet CHFI certification requirements. It is advisable to have a minimum of two years of experience in information security or a related field. Additionally, familiarity with digital forensics tools and techniques is also suggested.

To get ready for the CHFI exam, you can enroll in a CHFI training course, which can be done either in person or online. EC-Council provides authorized CHFI training courses, along with several other resources like study guides and practice exams, to aid in exam preparation.

After successfully passing the CHFI exam, you will obtain the Computer Hacking Forensic Investigator certification that remains valid for three years. To sustain your certification, you need to either earn continuing education credits or retake the CHFI exam before the expiration date.

Join the ranks of Computer Hacking Forensic Investigators – start your journey now!

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