Additional features, settings, or issues not covered by specific Microsoft Teams Free categories
For a compromised Teams personal account, use the Microsoft account recovery process for a hacked account.
- Start the hacked-account recovery flow and follow the guided steps. It asks for the email address or phone number and then either provides self-help steps or offers the chance to talk to an agent.
- Before changing the password, run a full malware scan on the PC. In Windows Security, open Virus and threat protection → Scan options → Full scan → Scan now.
- After the scan, change the password if sign-in is still possible. If sign-in is no longer possible, use the password reset path.
- After access is restored, review account settings such as connected accounts, forwarding, and automatic replies, because those settings may have been changed.
- If Teams shows a sign-in banner, select Sign in and complete any prompts such as MFA. If the sign-in window does not appear, check the taskbar notification area for the Teams icon with a badge, or quit and reopen Teams.
For Teams access specifically, if the message says there is no permission to access the organization, that can indicate a problem with the organization domain or Office 365 account. In that case, the organization’s IT admin or sysadmin must help with next steps.
If the unknown user is appearing in Teams, Teams documents that deleted accounts and disabled-then-reenabled accounts can appear as Unknown User. For re-enabled accounts, signing out and back in can help the display name update within 72 hours.
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