Sign out of my Microsoft 365 email on all devices
When securing a compromised Microsoft 365 account, sign out of all sessions and devices.
- Sign in to My Account. Use your Microsoft 365 email address and password (your 123 Reg username and password won't work here).
 - Under your profile name, select Sign out everywhere.
    
   - To confirm you want to sign out of all sessions and devices, select OK.
 - Under Pick an account, select your account. You'll see a message confirming you've signed out of all devices.
    

 
Related step
- Keep your organization safe by enabling security defaults.
 
More info
- Keep your account secure and change your Microsoft 365 password.
 - Add an extra level of security to your account with multi-factor authentication.
 
