Firewall

What is a firewall?

A firewall is a security device that monitors incoming and outgoing network traffic and decides which data packets are allowed through or blocked based on predefined rules. Firewalls can be either software or hardware-based and serve as a protective shield against unauthorized access, hacker attacks and malware.

Functions and advantages

Firewalls protect networks from external threats and prevent sensitive data from falling into the wrong hands. They offer functions such as packet filtering, deep packet inspection and intrusion detection. Companies benefit from an improved security situation and can detect and block attacks at an early stage. Firewalls are an indispensable part of modern IT infrastructures and ensure the confidentiality, integrity and availability of data.