Managing personal Outlook.com account settings, security, and privacy
This matches an account-compromise scenario where the attacker may have added their own security info and blocked normal verification.
- First, scan the PC for malware before changing anything:
- Open Virus and threat protection.
- Select Scan options > Full scan > Scan now. This is important because changing the password on an infected device can expose the new password again.
- Then use the hacked-account recovery flow:
- Start the Microsoft hacked-account recovery process and use the sign-in helper tool.
- Enter the account email address or phone number.
- The tool will either show the available self-help recovery steps or offer the chance to talk to an agent.
- If access is still possible anywhere in the account, go to Security basics and select Review activity.
- If suspicious sign-ins appear under Unusual activity, expand them and select This wasn't me.
- If suspicious sign-ins appear under Recent activity, expand them and select Secure your account.
- If access is regained, immediately change the password from Security basics and create a strong new password.
- After recovery, check account settings that attackers commonly change:
- connected accounts
- forwarding
- automatic replies
- If the account is temporarily blocked during verification or shows Try another verification method:
- Try another verification method already connected to the account.
- Try another network, such as switching between Wi‑Fi and cellular.
- Wait 24 hours before trying again, and if needed wait longer, up to 1 week. Repeated attempts can reset the time lock.
- If unrequested verification codes are arriving, do not approve or respond to them. Without the code, the account remains protected.
If the attacker already replaced the two-step verification methods, normal self-service recovery may no longer work. In that case, the hacked-account recovery process is still the correct path because it can present the available recovery options and may offer agent assistance.
References:
- How to recover a hacked or compromised Microsoft account | Microsoft Support
- What happens if there's an unusual sign-in to your account | Microsoft Support
- Common problems with two-step verification for a work or school account
- Troubleshoot verification code issues for work or school accounts | Microsoft Support