In Microsoft Defender, anti-phishing policies are available on the Email & Collaboration > Policies & rules > Threat policies > Anti-phishing page. While a default anti-phishing policy automatically applies to all recipients, you can also create custom policies for specific users, groups, or domains.
Use an anti-malware app - Installing an anti-malware app and keeping it up to date can help defend your PC against viruses and other malware (malicious software). Microsoft Defender is free anti-malware software included with Windows if you have a Microsoft 365 Personal, Family, or Premium subscription. It's kept updated automatically through Windows Update. There are also anti-malware ...
With Microsoft Defender Antivirus now included in the Windows Security app, you can review, compare, and perform common tasks.
Using anti-malware on your device Microsoft Defender's real-time anti-malware protection runs whenever your device is on, keeping an eye out for malicious activity. Microsoft Defender will also run quick scans of your device on a daily basis, in case anything manages to elude the real-time protection.
To learn more about anti-malware see Getting started with anti-malware in Microsoft Defender. Tip: Stay up-to-date and install the latest updates on all your devices and apps (especially browsers) to help prevent malware.
Learn how to manage, configure, and use Microsoft Defender Antivirus, built-in anti-malware and antivirus protection.
Admins can learn about anti-malware email protection and anti-malware policies that protect against viruses, spyware, and ransomware in Microsoft 365.
Use rules to automatically perform specific actions on email that arrives in your inbox. For example, you can create rules that will change the importance level of messages as they come in, automatically move them to other folders, or delete them based on certain criteria. Select a tab option below for the version of Outlook you're using. What version of Outlook do I have?