Quick Answer
The answer is a Safe Links policy. This is the correct choice because Safe Links in Microsoft Defender for Office 365 provides real-time URL scanning and rewriting at the time of click, wrapping each link to route it through Microsoft’s threat intelligence service for immediate verification against current threat data, blocking access if malicious content is detected. On the Microsoft Cybersecurity Architect exam, this concept tests your ability to distinguish between protection layers: Safe Links handles URLs in messages and Office documents, while Safe Attachments focuses on file payloads. A common trap is confusing Safe Links with anti-spam or anti-phishing policies, which do not perform real-time link rewriting. Remember the key distinction: Safe Links rewrites and checks URLs on click, not just at delivery. Memory tip: think “Safe Links = Link Checker,” as it actively rewrites and verifies every URL you click in real time.
This SC-100 practice question tests your understanding of design security operations, identity, and compliance capabilities. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. 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.
Your organization uses Microsoft Defender for Office 365 and wants to block malicious links in email messages in real time. Which policy should you configure?
Anti-phishing policy
Why wrong: Anti-phishing policies protect against phishing but do not specifically block malicious links in real time.
Safe Attachments policy
Why wrong: Safe Attachments scans email attachments, not links.
Safe Links policy
Safe Links provides real-time scanning and blocking of malicious URLs in email.
Anti-spam policy
Why wrong: Anti-spam policies filter spam, not malicious links.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Safe Links policy
Safe Links policy in Microsoft Defender for Office 365 provides real-time URL scanning and rewriting at the time of click, enabling the blocking of malicious links in email messages. This policy wraps URLs to route clicks through Microsoft's threat intelligence service, which checks the link against current threat data and blocks access if malicious content is detected.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
Anti-phishing policy
Why it's wrong here
Anti-phishing policies protect against phishing but do not specifically block malicious links in real time.
Safe Attachments policy
Why it's wrong here
Safe Attachments scans email attachments, not links.
Safe Links policy
Why this is correct
Safe Links provides real-time scanning and blocking of malicious URLs in email.
Related concept
Read the scenario before looking for a memorised answer.
Anti-spam policy
Why it's wrong here
Anti-spam policies filter spam, not malicious links.
Common exam traps
The trap here is that candidates often confuse Safe Links with Safe Attachments, mistakenly thinking that attachment scanning covers embedded links, but Safe Attachments only handles file payloads, not URLs.
Detailed technical explanation
Safe Links uses URL detonation and time-of-click verification: when a user clicks a rewritten link, Defender checks the original URL against Microsoft's threat intelligence feed and, if malicious, displays a warning page or blocks access. This policy can also be applied to links in Office documents and Teams messages, and administrators can configure settings like 'Do not track user clicks' or 'Do not allow users to click through to the original URL' for strict enforcement.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
A company's IT admin needs to give a contractor read-only access to production logs without sharing account credentials. Using role-based access control (RBAC) and temporary scoped permissions — not a permanent shared password — is the correct pattern. Questions like this test whether you can apply least-privilege access across cloud identity services.
What to study next
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FAQ
Design security operations, identity, and compliance capabilities — This question tests Design security operations, identity, and compliance capabilities — Read the scenario before looking for a memorised answer..
The correct answer is: Safe Links policy — Safe Links policy in Microsoft Defender for Office 365 provides real-time URL scanning and rewriting at the time of click, enabling the blocking of malicious links in email messages. This policy wraps URLs to route clicks through Microsoft's threat intelligence service, which checks the link against current threat data and blocks access if malicious content is detected.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 24, 2026
This SC-100 practice question is part of Courseiva's free Microsoft 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 SC-100 exam.
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