What is the importance of firewalls in network security?

What is the importance of firewalls in network security?

Firewalls are crucial for protecting networks by controlling incoming and outgoing traffic based on security rules.

How do firewalls prevent unauthorized access?

They act as a barrier between trusted internal networks and untrusted external networks, filtering traffic.

Are there different types of firewalls?

Yes, there are several types, including packet-filtering firewalls, stateful inspection firewalls, and application-layer firewalls.

Can firewalls protect against malware?

While firewalls can block some malware by filtering traffic, they should be used alongside antivirus software for better protection.

What should I consider when choosing a firewall?

Consider factors like the type of network, the level of security needed, ease of management, and cost.