Firewall

A firewall is a security system that monitors and controls incoming and outgoing network traffic based on predetermined security rules. Think of it as a barrier between a trusted internal network and untrusted external networks, like the internet. Firewalls can be hardware devices or software programs that help protect computers and networks from unauthorized access, cyberattacks, and harmful data. By filtering traffic, a firewall ensures that only safe, approved communications are allowed, enhancing the overall security of your digital environment.