Unusal activity

The screenshots show Unusual activity detected, not a confirmed successful sign-in.

From the Recent activity page:

• If an entry is in Unusual activity, Microsoft needs a response from the account owner.
• The page shows This was me and This wasn't me only for unusual activity entries.
• A successful sign-in would appear as sign-in activity on the Recent activity page, which shows account use from the last 30 days.

What to do now:

1. Open the Recent activity page directly and review that entry again.
2. If the activity was not recognized, select This wasn't me.
3. Then go to Security basics and change the password immediately.
4. On the security settings page, update security settings and remove trusted devices if concerned that someone accessed the account.
5. If the page that opens after This wasn't me is temporarily unavailable, wait and try again later, then repeat the report and password change steps.
6. If sign-in stops working, use Forgot my password and select I think someone else is using my Microsoft account during recovery.

Additional checks:

• If the email is suspected to be fake, Microsoft recommends signing in to the Microsoft account directly rather than using links in the email.
• A legitimate unusual activity email can come from the Microsoft account team sender shown in Microsoft support content.

References:

• What is the Recent activity page?
• What happens if there's an unusual sign-in to your account
• Check the recent sign-in activity for your Microsoft account