Quick Answer
The answer is to configure a Safe Links policy. This is the correct choice because Safe Links in Defender for Office 365 provides time-of-click protection, meaning that when a user clicks a URL in an email, the link is dynamically scanned against Microsoft’s real-time threat intelligence to determine if it has become malicious since delivery. This proactive approach catches zero-hour threats that bypass initial email filtering. On the Microsoft Cybersecurity Architect exam, this question tests your understanding of how Defender for Office 365’s layered protection works, often contrasting Safe Links with Anti-Phish or Anti-Spam policies. A common trap is confusing Safe Links with Safe Attachments, which handles file-based threats rather than URL-based ones. Remember the mnemonic: “Links get a Click-Check, Attachments get a Sandbox.”
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. You need to protect users from malicious links in emails. What should you configure?
Anti-malware policy
Why wrong: Anti-malware policies handle malware, not links.
Safe Links policy
Safe Links protects users by scanning and blocking malicious links at the time of click.
Anti-phishing policy
Why wrong: Anti-phishing policies detect phishing attempts but do not specifically protect links at click-time.
Safe Attachments policy
Why wrong: Safe Attachments scans email attachments, not 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 is the correct answer because it specifically protects users from malicious links in emails by scanning URLs at the time of click, checking against Microsoft's threat intelligence, and optionally rewriting links to route clicks through the Safe Links service. This is the dedicated Defender for Office 365 feature designed to mitigate link-based attacks in email messages.
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-malware policy
Why it's wrong here
Anti-malware policies handle malware, not links.
Safe Links policy
Why this is correct
Safe Links protects users by scanning and blocking malicious links at the time of click.
Related concept
Read the scenario before looking for a memorised answer.
Anti-phishing policy
Why it's wrong here
Anti-phishing policies detect phishing attempts but do not specifically protect links at click-time.
Safe Attachments policy
Why it's wrong here
Safe Attachments scans email attachments, not links.
Common exam traps
The trap here is that candidates often confuse Safe Links with Safe Attachments, but Safe Attachments handles file payloads (attachments) while Safe Links handles URL payloads (links) — a common misconception that leads to selecting the wrong policy for link protection.
Detailed technical explanation
Safe Links works by intercepting HTTP/HTTPS URLs in email messages and optionally in Office documents, rewriting them to point to the Safe Links service (e.g., https://nam01.safelinks.protection.outlook.com/...). When a user clicks a rewritten link, the service performs a real-time reputation check against Microsoft's threat intelligence feed, blocking or warning the user if the URL is malicious. This behavior is governed by the Safe Links policy, which can be scoped to specific users, groups, or domains, and includes settings for URL tracking and 'Do not rewrite' exceptions.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
A cloud solutions architect for a retail company is evaluating services for a new workload. The correct answer here reflects best practice for the specific scenario described — not a general cloud recommendation. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Cloud exam questions reward reading the constraint carefully: the same technology can be right or wrong depending on the use case.
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 is the correct answer because it specifically protects users from malicious links in emails by scanning URLs at the time of click, checking against Microsoft's threat intelligence, and optionally rewriting links to route clicks through the Safe Links service. This is the dedicated Defender for Office 365 feature designed to mitigate link-based attacks in email messages.
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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