You are the Microsoft 365 administrator for a company. You need to ensure that users receive a warning message if they select links in emails that might be unsafe. What should you do?

Installing antimalware engine updates via PowerShell addresses malware signature definitions, not URL/link safety warnings in emails.

Microsoft Office 365 Advanced Threat Protection includes the Safe Links feature, which actively scans URLs in emails at the time of click and displays a warning message if the link is determined to be potentially unsafe or malicious. This is the only option among the choices that directly addresses URL-based threat protection with real-time warning messages to end users.

Spam filter policies in the Exchange Admin Center are designed to filter unsolicited bulk email based on content heuristics, not to warn users about unsafe hyperlinks within messages.

Antimalware policies in the Exchange Admin Center scan email attachments for known malware, but do not provide link-scanning or warning functionality for potentially unsafe URLs.