- A
The user's iCloud account was compromised, and the email is synced via Exchange.
Why wrong: iCloud compromise would affect iCloud services, but corporate email accessed via Exchange typically uses separate credentials.
- B
An OAuth token or app-specific password was stolen and used to access the account.
OAuth tokens or app-specific passwords can grant persistent access to email without needing the main password, making them a common vector for continued access.
- C
The user's iPhone has a jailbreak that hides malicious apps.
Why wrong: A jailbreak could hide apps, but the question states no suspicious apps are found, and this is less likely than token theft.
- D
The corporate email server has a backdoor account.
Why wrong: A server backdoor is possible but is a server-side issue, not a mobile OS troubleshooting scenario, and less common than token theft.
Quick Answer
The answer is a stolen OAuth token or app-specific password. This is correct because OAuth tokens and app-specific passwords act as persistent access keys that bypass the primary account password, allowing an attacker to maintain access to a corporate email account even after the user changes their credentials. On the CompTIA A+ Core 2 220-1202 exam, this scenario tests your understanding of modern authentication vulnerabilities—specifically how token theft can compromise an iPhone email account accessed from an unknown device without leaving suspicious apps or being stopped by a password reset. A common trap is assuming malware or a weak password is the cause, but the key clue here is that the password change had no effect, which points directly to a stolen token. Memory tip: think of an OAuth token as a “backstage pass” that works even after the front gate password is changed.
220-1102 Mobile OS and App Troubleshooting Practice Question
This 220-1202 practice question tests your understanding of mobile os and app troubleshooting. 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.
A technician is investigating a security incident where a user's corporate email account was accessed from an unknown device. The user's iPhone shows no suspicious apps, and the password was recently changed. Which of the following is the MOST likely cause?
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
An OAuth token or app-specific password was stolen and used to access the account.
Option B is correct because OAuth tokens or app-specific passwords bypass the need for the primary password, allowing persistent access even after a password change. Since the user's iPhone shows no suspicious apps and the password was recently changed, a stolen token is the most plausible vector for unauthorized email access via Exchange ActiveSync or modern authentication.
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 user's iCloud account was compromised, and the email is synced via Exchange.
Why it's wrong here
iCloud compromise would affect iCloud services, but corporate email accessed via Exchange typically uses separate credentials.
- ✓
An OAuth token or app-specific password was stolen and used to access the account.
Why this is correct
OAuth tokens or app-specific passwords can grant persistent access to email without needing the main password, making them a common vector for continued access.
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.
- ✗
The user's iPhone has a jailbreak that hides malicious apps.
Why it's wrong here
A jailbreak could hide apps, but the question states no suspicious apps are found, and this is less likely than token theft.
- ✗
The corporate email server has a backdoor account.
Why it's wrong here
A server backdoor is possible but is a server-side issue, not a mobile OS troubleshooting scenario, and less common than token theft.
Common exam traps
Common exam trap: answer the scenario, not the keyword
CompTIA often tests the distinction between password-based attacks and token-based persistence, where candidates mistakenly assume that changing the password immediately revokes all access, ignoring OAuth tokens or app-specific passwords that remain valid.
Trap categories for this question
Scenario analysis trap
A server backdoor is possible but is a server-side issue, not a mobile OS troubleshooting scenario, and less common than token theft.
Detailed technical explanation
How to think about this question
OAuth 2.0 tokens and app-specific passwords are issued by identity providers (e.g., Microsoft 365) and grant scoped access without requiring the primary password. These tokens can be stolen via phishing, man-in-the-middle attacks, or malware that intercepts the token exchange, and they remain valid until explicitly revoked, even if the user changes their password. In Exchange Online, an attacker with a stolen OAuth token can access mailboxes via REST APIs or ActiveSync without triggering typical password-change alerts.
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 practitioner preparing for the 220-1202 exam encounters this exact type of scenario on the job. The correct answer here is not the most general option — it is the best answer for the specific constraint described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.
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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Mobile OS and App Troubleshooting — study guide chapter
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FAQ
Questions learners often ask
What does this 220-1202 question test?
Mobile OS and App Troubleshooting — This question tests Mobile OS and App Troubleshooting — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: An OAuth token or app-specific password was stolen and used to access the account. — Option B is correct because OAuth tokens or app-specific passwords bypass the need for the primary password, allowing persistent access even after a password change. Since the user's iPhone shows no suspicious apps and the password was recently changed, a stolen token is the most plausible vector for unauthorized email access via Exchange ActiveSync or modern authentication.
What should I do if I get this 220-1202 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
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Last reviewed: Jun 30, 2026
This 220-1202 practice question is part of Courseiva's free CompTIA 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 220-1202 exam.
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