Email hacked

Since there was an unexpected sign-in and email stopped arriving, secure the account first, then check for mailbox changes that attackers commonly make.

1. Run a full malware scan on the PC before changing anything else.
   • Open Windows Security.
   • Go to Virus and threat protection.
   • Select Scan options > Full scan > Scan now.
2. Change the Microsoft account password, or reset it if sign-in fails.
   • After the scan, change the password to a strong one.
3. Check recent sign-in activity.
   • Open the Recent activity page and review the sign-ins from the last 30 days.
   • Mark the Indonesia sign-in as not recognized if it was not legitimate.
4. Check Outlook.com settings that may stop mail from reaching the Inbox.
   • In Outlook.com on the web, review Rules and remove anything unfamiliar.
   • Check Forwarding and remove any unknown forwarding destination.
   • Check connected accounts and automatic replies for anything unfamiliar.
5. Review account security details.
   • Verify recovery methods and other security info are still correct.
   • Remove unrecognized trusted devices if present.
   • Turn on two-step verification.
6. If the Outlook.com account is blocked because of unusual activity, use the Sign-in Helper to unblock it.
7. If email still does not return, use the sign-in helper or Contact Microsoft Support. Support agents cannot send password reset links or directly change account details, but the tool can guide to the correct recovery path.

References:

• How to recover a hacked or compromised Microsoft account
• What happens if there's an unusual sign-in to your account
• Check the recent sign-in activity for your Microsoft account
• Unblock my Outlook.com account
• my email has been hacked and I cannot receive emails - Microsoft Q&A