The answer is multi-factor authentication (MFA), which is the best control to mitigate the risk of a stolen password being used to access employee email. MFA works by requiring at least two different authentication factors—typically something you know, like a password, and something you have, such as a time-based one-time password from an authenticator app. Even if an attacker steals the password, they cannot complete the login without the second factor, directly neutralizing credential theft as a vector for account compromise. On the Security+ SY0-701 exam, this concept tests your understanding of authentication assurance and the principle of defense in depth; a common trap is confusing MFA with simply requiring a longer password or a CAPTCHA, which are single-factor controls. Remember the memory tip: “Two factors, one lock—MFA stops the stolen key.”
SY0-701 General Security Concepts Practice Question
This SY0-701 practice question tests your understanding of general security concepts. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. 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 company wants to reduce the chance that a stolen password can be used to access employee email. Which control is the best fit?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "best"
Why it matters: Signals that multiple options may be partially correct. Choose the option that most directly solves the exact problem described, not the one that sounds most complete.
Why wrong: Stronger passwords help, but they do not stop a stolen password from being reused.
B
Multi-factor authentication
Multi-factor authentication adds another verification step beyond the password, so an attacker who steals only a password still cannot easily log in. It is a practical preventive control for reducing account takeover risk, especially for email and other internet-facing services where passwords may be phished, reused, or exposed in breaches.
C
Daily backup verification
Why wrong: Backups help recovery after loss, but they do not prevent unauthorized email access.
D
Security awareness posters
Why wrong: Awareness helps users recognize risk, but it does not technically block password reuse.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Multi-factor authentication
Multi-factor authentication (MFA) requires at least two different authentication factors (e.g., something you know like a password and something you have like a time-based one-time password from an authenticator app). Even if an attacker steals the password, they cannot access the email without the second factor, directly reducing the risk of credential theft leading to account compromise.
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.
✗
Password complexity requirements only
Why it's wrong here
Stronger passwords help, but they do not stop a stolen password from being reused.
✓
Multi-factor authentication
Why this is correct
Multi-factor authentication adds another verification step beyond the password, so an attacker who steals only a password still cannot easily log in. It is a practical preventive control for reducing account takeover risk, especially for email and other internet-facing services where passwords may be phished, reused, or exposed in breaches.
Clue confirmation
The clue word "best" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
✗
Daily backup verification
Why it's wrong here
Backups help recovery after loss, but they do not prevent unauthorized email access.
✗
Security awareness posters
Why it's wrong here
Awareness helps users recognize risk, but it does not technically block password reuse.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often choose password complexity (A) thinking stronger passwords prevent theft, but the question explicitly states the password is already stolen, so only a second factor like MFA can block its use.
Detailed technical explanation
How to think about this question
MFA typically uses TOTP (RFC 6238) or HOTP (RFC 4226) algorithms, where a shared secret and current time or counter generate a one-time code. In real-world deployments, conditional access policies can require MFA only for risky sign-ins (e.g., from new IP addresses), balancing security and user convenience. Even if an attacker phishes both the password and the OTP, modern MFA with number matching or FIDO2 WebAuthn can resist real-time phishing relay attacks.
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 security analyst at a medium-sized enterprise encounters this scenario during an investigation or architecture review. The correct answer reflects best practice for the specific threat or control described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Security exam questions test whether you can match controls to threats in context — not just recall definitions.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this SY0-701 question in full detail.
General Security Concepts — This question tests General Security Concepts — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Multi-factor authentication — Multi-factor authentication (MFA) requires at least two different authentication factors (e.g., something you know like a password and something you have like a time-based one-time password from an authenticator app). Even if an attacker steals the password, they cannot access the email without the second factor, directly reducing the risk of credential theft leading to account compromise.
What should I do if I get this SY0-701 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: "best". Signals that multiple options may be partially correct. Choose the option that most directly solves the exact problem described, not the one that sounds most complete.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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