.. include:: ../../Includes.txt .. _administrator-rules: General rules ^^^^^^^^^^^^^ #. Subscribe to the "TYPO3 Announce" mailing list at `http://lists.typo3.org `_ , so that you are informed about TYPO3 security bulletins and TYPO3 updates. #. React as soon as possible and update the relevant components of the site(s) when new vulnerabilities become public (e.g. security issues published in the mailing list). #. Use different passwords for the Install Tool and the backend login. Follow the guidelines for secure passwords in this document. #. If you are administrating several TYPO3 installations, use different passwords for all logins and components for every installation. #. Never use the same password for a TYPO3 installation and any other service such as FTP, SSH, etc. #. Change the username and password of the "admin" account after the installation of TYPO3 immediately. #. If you are also responsible for the setup and configuration of TYPO3, follow the steps for TYPO3 integrators carefully, documented in the next chapter.