Outdated TYPO3 Version
This documentation refers to an outdated TYPO3 version - either select a supported version or make sure to use a TYPO3 Extended Long Term Support (ELTS) version to continue getting security updates.
The “General Guidelines” also apply to editors – especially the section “Secure passwords” and “Operating system and browser version”, see above.
Due to the fact that editors do not change the configuration of the system, there are only a few things editors should be aware of. As a general rule, you should contact the person, team or agency who/which is responsible for the system (usually the provider of the TYPO3 instance, a TYPO3 integrator or system administrator) if you determine a system setup that does not match with the guidelines described here.