CHFI Mobile and Malware Forensics Practice Question
This CHFI practice question tests your understanding of mobile and malware forensics. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
Which of the following mobile forensic tools is specifically known for its ability to perform advanced extractions on iOS devices, including bypassing the lock screen on many models?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
GrayKey
GrayKey is specifically designed for advanced iOS extractions, leveraging a combination of hardware and software exploits to bypass the lock screen on many iPhone models, including recent ones. Unlike general-purpose forensic tools, GrayKey focuses exclusively on iOS and uses techniques like checkm8 bootrom exploit or brute-force attacks via USB to gain access to encrypted device data.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✗
Cellebrite UFED
Why it's wrong here
Cellebrite UFED supports both iOS and Android but is not exclusively focused on iOS lock screen bypass.
✗
Magnet AXIOM
Why it's wrong here
Magnet AXIOM is a comprehensive forensic platform that supports mobile, but GrayKey is the more specialized iOS extraction tool.
✗
Oxygen Forensic Detective
Why it's wrong here
Oxygen Forensic Detective supports multiple platforms but is not specifically known for iOS lock screen bypass.
✓
GrayKey
Why this is correct
GrayKey is known for iOS lock screen bypass and advanced extraction.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
Common exam trap: answer the scenario, not the keyword
EC-Council often tests the distinction between general-purpose forensic tools (like Cellebrite UFED) and specialized hardware-based extraction tools (like GrayKey), leading candidates to choose Cellebrite because of its brand recognition, even though GrayKey is the only option specifically designed for advanced iOS lock-screen bypass.
Detailed technical explanation
How to think about this question
GrayKey uses a custom hardware appliance that connects to the iPhone via Lightning or USB-C, exploiting the checkm8 bootrom vulnerability (for A5 to A11 chips) to bypass the lock screen and extract the full file system, including keychain data. In real-world scenarios, law enforcement agencies use GrayKey to access iPhones in criminal investigations where suspects refuse to provide passcodes, and it can handle devices with iOS versions up to 16.x depending on the exploit availability.
KKey Concepts to Remember
Read the scenario before looking for a memorised answer.
Find the constraint that changes the correct option.
Eliminate answers that are true in general but not in this case.
TExam Day Tips
→Watch for words such as best, first, most likely and least administrative effort.
→Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A small business has 20 workstations on the 192.168.1.0/24 network and one public IP from its ISP. The router uses PAT (NAT overload) so all 20 devices share one public address using different source ports. NAT questions test whether you understand the four address terms and which direction each translation applies.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this CHFI question in full detail.
Mobile and Malware Forensics — This question tests Mobile and Malware Forensics — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: GrayKey — GrayKey is specifically designed for advanced iOS extractions, leveraging a combination of hardware and software exploits to bypass the lock screen on many iPhone models, including recent ones. Unlike general-purpose forensic tools, GrayKey focuses exclusively on iOS and uses techniques like checkm8 bootrom exploit or brute-force attacks via USB to gain access to encrypted device data.
What should I do if I get this CHFI question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
This CHFI practice question is part of Courseiva's free EC-Council certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the CHFI exam.
Question Discussion
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
Sign in to join the discussion.