What is the primary function of firewalls and gateways?

The primary function of firewalls and gateways is to keep data safe from infected files. Firewalls act as a security barrier between an internal network and external sources, controlling the incoming and outgoing network traffic based on predetermined security rules. They are designed to block unauthorized access while allowing authorized communications. Gateways, often included in the network security architecture, can filter packets and provide a secure passageway for data, ensuring that only safe, clean data enters and leaves a system.

This protective function is essential in safeguarding an organization's sensitive information and maintaining the integrity of its systems. While elements like monitoring employee internet usage can be beneficial for organizational policy enforcement and compliance, it is not the main role of firewalls and gateways. Other functions mentioned, such as enhancing internet speed or performing regular system updates, do not pertain to the core purpose of these security components. Their primary aim remains firmly rooted in data protection and securing network interactions.