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A public, borrowed, or shared computer changes the risk of a Telegram Desktop session. A chat can sync correctly while the next person at that computer can still see it if you leave the account signed in. This guide covers deciding whether to use Desktop or Web, protecting a session while present, and ending access afterward. Telegram’s FAQ is the primary reference for active sessions and account security.
Decide whether installation is appropriate
If the computer is managed by a library, school, employer, or another person, follow its software rules. Installing a desktop client may not be appropriate even if a file can be downloaded. Telegram Web can provide browser access, but a browser session still needs a careful sign-out. The Web guide compares browser storage and session handling with an installed client.
The Desktop guide helps choose a platform build for a computer you control. Portable does not mean anonymous or automatically safer on a shared machine.
Protect sign-in codes during the session
Use only Telegram’s current sign-in flow and keep the login code and two-step password private. If a page or person on the shared machine asks for a code outside the client, stop. Check that you are signing in to your own account and not approving a request you did not initiate. A QR or device-approval prompt should correspond to the computer and session you are actually using.
After sign-in, review a familiar cloud chat to confirm account identity. Telegram’s FAQ says Secret Chats are device-specific, so their absence on a new computer does not prove sign-in failure. The multi-device checklist covers that distinction.
Limit local file exposure
A document downloaded from Telegram can remain in a public Downloads folder after you close the app. Know where the file was saved and whether it contains private information. The file-location guide helps reveal the actual path. Avoid running attachments from unfamiliar group members, especially installers and scripts.
Do not rely on clearing Telegram’s internal cache as a substitute for handling separately saved files. The cache guide explains the difference. Follow the computer owner’s rules for temporary files rather than deleting unrelated user data.
End the account session when finished
Use Telegram’s own sign-out control in the installed client or Web session. Closing the window or browser tab alone is not necessarily equivalent to ending account access. From a trusted phone, inspect the active-device list and end the shared computer’s session if it remains. Be careful not to end your only trusted session while you still need to manage account access.
If someone else used the computer while your account was open, review unfamiliar sessions and consider the account-security options shown by Telegram. Do not send your code to a support bot that claims to clean up the session.
Verify the cleanup from a trusted device
Once you are back on a phone you control, compare the active-session list with the devices you still use. A session name or approximate activity can help, but confirm against your own usage before removing a device. A missing group notification is not evidence that another person has accessed the account; investigate alerts separately in the desktop notification article.
If the computer was only borrowed briefly, a browser route may reduce installation overhead next time, but it does not remove the need to sign out, inspect downloads, and protect codes. The goal is to leave no account session or sensitive local file accessible to the next user.