Computers at the schools are equipped with Windows Defender. Current tests, including by AV-TEST (opens in a new tab), prove the secure and reliable protection of the free onboard solution.

A central firewall protects the networks of Wiesbaden's schools against external attacks and restricts access to the Internet. On the one hand, this prevents file-sharing programs and certain types of viruses and malware from establishing a connection from the school networks to the World Wide Web. On the other hand, the school networks are protected from external access.

As a further tool to increase security and ensure the protection of minors, all Internet traffic is checked via a DNS filter. Access to websites glorifying violence, national socialist and pornographic websites is filtered, while other categories such as gambling providers are also blocked. The filter database is updated automatically, but the administrators of the media center also have the option of manually adding or removing websites from the database.

Schools in Wiesbaden mainly use the Microsoft Windows operating system. Microsoft regularly publishes security updates for its operating system. In order to control the distribution of updates and reduce the bandwidth utilization of the school network, updates to the operating system as well as third-party software are distributed via the central software distribution system. This ensures that the latest versions are always available and that security-critical gaps can be updated/closed promptly.