Enhanced Phishing Protection in Microsoft Defender SmartScreen helps protect your account passwords against phishing and unsafe usage on sites and apps. This protection is built into Windows, and it works with Microsoft Defender Endpoint to provide protection on your device and in the cloud. Protection such as Controlled folder access, Real-time protection, Tamper protection, and Ransomware protection are included with Microsoft Security. When you enable Microsoft Defender SmartScreen with enhanced protection, Windows will warn users if they reuse their Microsoft account password on sites and apps and prompt them to change their password. This also works with any Chromium browser, including Edge. If users type their password into a site deemed malicious by Microsoft Defender SmartScreen, Enhanced Phishing Protection will alert them. Below is how to turn on or off password reuse warning with SmartScreen Phishing protection in Windows 11.

How to enable or disable password reuse warning with SmartScreen Phishing protection in Windows 11

As mentioned above, when you enable Microsoft Defender SmartScreen with enhanced protection, Windows will warn users if they reuse their Microsoft account password on sites and apps and prompt them to change their password. Below is how to turn on or off password warnings with Enhanced Phishing Protection in Windows 11. In the search box on the taskbar, type Windows Security and then select Windows Security in the list of results. In Windows Security, select App & browser control tile as highlighted in the image below. On the App & browser control settings page, under Reputation-based protection, click on the Reputation-based protection settings link as highlighted below. On the Reputation-based protection settings page, under Phishing protection, toggle the button to On or Off to enable or disable Phishing protection with Microsoft Defender. When you enable Phishing protection, you can also choose to selectively enable malicious apps and sites, password reuse, and unsafe password storage warnings. Alternatively, open Local Group Policy Editor by clicking on the Start Menu and searching for Edit group policy as highlighted below. Under Best match, select Edit group policy to launch Local Group Policy Editor. In the left pane of Local Group Policy Editor, expand the tree:  In the Enhanced Phishing Protection details pane on the right, locate and double-click the setting Notify Password Reuse. In the Notify Password Reuse setting window, set the option to Not Configure, Enabled, or Disabled.

Not Configured (default) Enabled  Disabled

Select OK to apply your changes. Close Local Group Policy Editor. That should do it! Conclusion: This post showed you how to turn on or off password reuse warning with SmartScreen Phishing Protection in Windows 11. If you find any error above or have something to add, please use the comment form below.