What is Firewall-Systemen?

Firewall systems are network security devices that monitor incoming and outgoing network traffic and decide whether to allow or block specific traffic based on a defined set of security rules. They are commonly used to protect networks from unauthorized access, malicious attacks, and data breaches by acting as a barrier between a trusted internal network and an untrusted external network, such as the Internet. Firewalls can be hardware, software, or a combination of both.