Practical reading
A shared device can retain history, downloads, autofill, and open sessions. If only reading public information, avoid signing in unnecessarily and do not save passwords on a borrowed device. Close tabs afterward and check that files were not downloaded accidentally.
Be careful with prompts for notifications, camera, location, or other permissions. A page should have a clear need before access is granted. Do not let a stranger install remote-access software while claiming to provide support. Private browsing does not make you anonymous to the network or erase downloads.
If using an account, sign out explicitly and keep authentication codes out of view. A trusted personal device is preferable for sensitive tasks. These habits protect information but do not establish site legitimacy or security. Check the hostname and never post credentials or full identity documents publicly.
Further reading notes
Before using a borrowed or public device, consider whether the task can be completed using public information without signing in. Avoid saving passwords, enabling persistent notifications, or downloading files. Check the browser’s download list and close the relevant tabs when finished, but remember that local history may not be the only record: networks and device administrators may have their own visibility. Private browsing is not anonymity and does not erase files or activity outside that browser session.
If an account was opened, sign out explicitly and avoid leaving recovery codes or authentication prompts visible. Do not let an unfamiliar person install remote-support software. Use a personal trusted device for sensitive account changes where possible. These habits address exposure on the device, not whether a hostname is authentic or a service is secure. Check identity separately and keep credentials and complete identity documents out of public messages. If a device behaves unexpectedly, stop entering sensitive information and seek trusted technical help.
A closed tab is not always a closed session
On a shared computer, closing a browser window may leave an authenticated session available when the browser restores its tabs. Signing out of the service is therefore different from merely leaving the page. If a browser offers to remember a password or synchronize data to a profile, decline on a borrowed device. Do not remove another person’s browser profile or erase unrelated history in an attempt to clean up your own activity. A downloaded file can remain in the operating system even when a private window is closed. If sensitive information was entered on a device you no longer trust, use a separate trusted device to review available account sessions and recovery options. Clearing visible traces on the shared machine cannot establish that no copy remains elsewhere.