2] Change your password. If you receive multiple single-use code emails, it is likely that someone already has your password and is trying to log into your Microsoft account.

Fraudsters are attempting to log into Microsoft users' accounts - here’s what to do if you receive one of these 'single-use code' emails. Emails from Microsoft containing a 6-digit code are leaving ...

Microsoft is working to fix a DNS misconfiguration that is causing one-time passcode (OTP) message delivery failures in Exchange Online for some users.

If you find yourself at a remote computer, or unsure of your net connection, you can sign into Live.com, Hotmail, and other Windows Live services using a single-use code, which Microsoft will send ...

Microsoft has also implemented single-use codes for logging into Outlook.com when on a public computer or other devices where the user may be at risk of having their passwords detected.

On Tuesday evening, after investigating, Microsoft confirmed the group that it calls DEV-0537 compromised “a single account” and stole parts of source code for some of its products. A blog ...