Firewall

What Is a Firewall?

Short definition:
A firewall is a security system that monitors and controls incoming and outgoing network traffic based on security rules.

What this actually means for a business:
Firewalls act as a barrier between your internal systems and external threats, helping prevent unauthorized access.

Common misconception:
Having a firewall alone means a network is secure. Firewalls are just one layer of protection.

When this matters:
Any business connected to the internet should have properly configured firewall protection.

Related terms: Cybersecurity, Endpoint Security, Zero Trust