Technology · 2
What is the primary purpose of a 'firewall' in cybersecurity?
Answer
To monitor and control network traffic
A firewall is a network security system that monitors and controls incoming and outgoing network traffic according to predetermined security rules and policies. Firewalls act as a barrier between trusted internal networks and untrusted external networks (like the internet), deciding which data packets are allowed to pass based on their source, destination, and content. Both hardware firewalls (protecting entire networks) and software firewalls (protecting individual devices) are essential layers of cybersecurity defense.
💡 Did you know?
The term 'firewall' metaphorically borrows from building architecture, where firewalls prevent fire from spreading—cybersecurity firewalls similarly block malicious traffic.
Other options people guess
- To speed up internet connection
- To encrypt data
- To detect viruses
Topics
- cybersecurity
- networking
- security
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