Cyber attackers use security gaps in browsers to attack your computer. Use only browsers supported by us and update them regularly.
Switch to private mode in your browser when you access the internet using public access points. That lets you prevent your browser history or entered data from being saved.
On dubious web pages, there is a high risk that your computer will become infected with harmful programs, viruses or trojans. Only click links that you trust.
When you log in using gmx.com, your credentials may be saved on the computer, depending on the settings. Do not save credentials on a computer that is used by multiple people.