Security guidelines 

TYPO3 is built with strong security principles, but maintaining a secure installation requires ongoing attention from everyone involved — administrators, integrators, developers, and editors.

This guide provides practical recommendations to protect your TYPO3 instance from common threats such as unauthorized access, insecure configurations, extension vulnerabilities, and more.

It also explains how to respond to incidents, how the TYPO3 Security Team operates, and where to stay informed about updates and security advisories.

Each section focuses on a particular role, topic, or concern, helping you quickly find the information most relevant to your responsibilities or situation.