Outdated TYPO3 Version
This documentation refers to an outdated TYPO3 version - either select a supported version or make sure to use a TYPO3 Extended Long Term Support (ELTS) version to continue getting security updates.
Operating system and browser version¶
Make sure that you are using up-to-date software versions of your browser and that you have installed the latest updates for your operating system (such as Microsoft Windows, Mac OS X or Linux). Check for software updates regularly and install security patches immediately or at least as soon as possible.
It is also recommended to use appropriate tools for detecting viruses, Trojans, keyloggers, rootkits and other “malware”.