Öffentliches WLAN im Homeoffice absichern: eine Checkliste ohne Panik

Frequently asked

What are the must-do basics on any public network?

Use a VPN, make sure every site is HTTPS, turn off file and printer sharing, mark the network as public so your device locks down, and keep your OS and browser patched. Five habits close the overwhelming majority of real risk.

How do I spot a fake hotspot?

Be wary of open networks named almost like the venue’s ("Hotel_Guest_Free"), portals that ask for too much personal data, and connections that throw certificate warnings. When unsure, ask staff for the exact network name and password rather than guessing.

Is two-factor authentication enough on its own?

It is essential but not sufficient. 2FA protects logins, but an unencrypted session, a malicious network or a stolen cookie can still bite. Layer it: 2FA plus a VPN plus HTTPS plus a locked-down device, not any one of them alone.

What should I never do on public Wi-Fi?

Avoid logging into anything financially sensitive on an unfamiliar network without a VPN, never let the browser save passwords on a shared machine, and do not ignore certificate warnings. If a task is high-stakes and the network feels off, tether to your own data instead.