- A
The data is encrypted with the device's hardware UID; decryption is impossible without Apple's assistance.
Why wrong: While the UID is used, the encryption key also involves the passcode, and decryption is possible with the passcode.
- B
The data is encrypted using Apple's FileVault; decryption requires the user's iCloud password.
Why wrong: FileVault is for macOS; iOS uses Data Protection with passcode-derived keys.
- C
The data is encrypted using SQLCipher; decryption requires a 256-bit key stored in the Keychain.
Why wrong: iOS uses its own Data Protection, not SQLCipher, though the Keychain may store related keys.
- D
The data is protected by iOS Data Protection using a key derived from the device passcode; decryption requires the passcode or a forensic bypass tool.
Health data is protected by Data Protection, requiring the passcode for decryption.
Quick Answer
The correct answer is that iOS Data Protection, using a key derived from the device passcode, is responsible for encrypting Health app data in iCloud backups, and decryption requires that passcode or a forensic bypass tool. This is because the Health app’s SQLite database files are protected by a specific Data Protection class that ties the encryption key to the user’s passcode via the Secure Enclave, ensuring the data remains encrypted both on-device and when synced to iCloud. On the Computer Hacking Forensic Investigator CHFI exam, this question tests your understanding of Apple’s keychain and file protection architecture, often appearing as a trap where candidates mistakenly blame iCloud’s end-to-end encryption or a separate Health app key. Remember the mnemonic “Health Hinges on Passcode” to recall that without the device passcode, the encrypted SQLite files are inaccessible without specialized forensic tools.
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.
During an iOS forensic examination of an iCloud backup, an analyst finds that the SQLite database files for the Health app are encrypted. Which component is MOST likely responsible for encrypting this data, and what is required to decrypt it?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue:
"most likely"Why it matters: Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
The data is protected by iOS Data Protection using a key derived from the device passcode; decryption requires the passcode or a forensic bypass tool.
Option D is correct because iOS Health app data is protected by iOS Data Protection, which uses a class key derived from the user's device passcode. This key encrypts the SQLite database files in iCloud backups, and decryption requires either the passcode or a forensic bypass tool that can extract the key from the device's Secure Enclave.
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.
- ✗
The data is encrypted with the device's hardware UID; decryption is impossible without Apple's assistance.
Why it's wrong here
While the UID is used, the encryption key also involves the passcode, and decryption is possible with the passcode.
- ✗
The data is encrypted using Apple's FileVault; decryption requires the user's iCloud password.
Why it's wrong here
FileVault is for macOS; iOS uses Data Protection with passcode-derived keys.
- ✗
The data is encrypted using SQLCipher; decryption requires a 256-bit key stored in the Keychain.
Why it's wrong here
iOS uses its own Data Protection, not SQLCipher, though the Keychain may store related keys.
- ✓
The data is protected by iOS Data Protection using a key derived from the device passcode; decryption requires the passcode or a forensic bypass tool.
Why this is correct
Health data is protected by Data Protection, requiring the passcode for decryption.
Clue confirmation
The clue word "most likely" in the question point toward this answer.
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 device-level encryption (hardware UID) and iCloud backup encryption (passcode-derived keys), and the trap here is confusing SQLCipher (a third-party tool) with Apple's proprietary iOS Data Protection framework.
Detailed technical explanation
How to think about this question
iOS Data Protection uses a hierarchy of keys: the device's UID (unique ID) and the user's passcode combine to create a class key that encrypts files. For Health app data in iCloud backups, the backup is encrypted with a key derived from the iCloud account password and a device-specific key, but the Health database itself is protected by a Data Protection class (NSFileProtectionComplete) that requires the device passcode to decrypt. In forensic practice, tools like Cellebrite or GrayKey can attempt to brute-force the passcode or exploit vulnerabilities in the Secure Enclave to recover the key.
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.
What to study next
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
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FAQ
Questions learners often ask
What does this CHFI question test?
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: The data is protected by iOS Data Protection using a key derived from the device passcode; decryption requires the passcode or a forensic bypass tool. — Option D is correct because iOS Health app data is protected by iOS Data Protection, which uses a class key derived from the user's device passcode. This key encrypts the SQLite database files in iCloud backups, and decryption requires either the passcode or a forensic bypass tool that can extract the key from the device's Secure Enclave.
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.
Are there clue words in this question I should notice?
Yes — watch for: "most likely". Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
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 →
Last reviewed: Jun 30, 2026
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.
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