Plusgram - Telegram
FAQ Entry
63

Log out of Telegram

You can view active sessions in settings and manually log out of the current device or other devices.

If a device is lost or you suspect someone else is using your account, immediately terminate the other sessions and change your two-step verification password.

Related questions

If this answer only covers part of your case, continue with related questions from the same topic. That usually makes account, installation, and security issues easier to connect and solve.