---
title: "What is the purpose of firewalls in computer security?"  
description: "A firewall in computer security is a protective barrier that monitors and controls incoming and outgoing network traffic based on predetermined security rules."  
author: "Baishakhi Ghosh"  
published: 2023-11-20  
canonical: https://yourviews.mindstick.com/story/3293/what-is-the-purpose-of-firewalls-in-computer-security  
category: "technology"  
tags: ["security", "computer", "firewall", "protection", "internet"]  
reading_time: 1 minute  

---

# What is the purpose of firewalls in computer security?

![What is the purpose of firewalls in computer security](https://yourviews.mindstick.com/stories/5fa0e802-5835-4add-9ec3-950d986eac6f/images/eafb5687-f04b-4d35-91dc-ea39d093fe4a.jpeg) What is the purpose of firewalls in computer security? ![What is the purpose of firewalls in computer security](https://yourviews.mindstick.com/stories/5fa0e802-5835-4add-9ec3-950d986eac6f/images/e55df325-b18e-4149-829d-a4b5a37dc9f8.jpeg) Network Security: Firewalls act as a barrier between a trusted internal network and untrusted external networks, preventing unauthorized access. ![What is the purpose of firewalls in computer security](https://yourviews.mindstick.com/stories/5fa0e802-5835-4add-9ec3-950d986eac6f/images/4434ea6a-16da-4726-9525-1c1ca4346528.jpeg) Protection Against Cyber Threats: Firewalls block or allow data packets based on security policies, helping to prevent cyber threats. ![What is the purpose of firewalls in computer security](https://yourviews.mindstick.com/stories/5fa0e802-5835-4add-9ec3-950d986eac6f/images/2687d74c-f67c-454b-879e-afa7f8f696cd.jpeg) Access Control: Firewalls control incoming and outgoing network traffic based on predetermined security rules. ![What is the purpose of firewalls in computer security](https://yourviews.mindstick.com/stories/5fa0e802-5835-4add-9ec3-950d986eac6f/images/342b51a8-3cf5-48af-b497-f515bf941051.jpeg) Stateful Inspection: Firewalls monitor the state of active connections, allowing or blocking traffic based on the context of the communication. ![What is the purpose of firewalls in computer security](https://yourviews.mindstick.com/stories/5fa0e802-5835-4add-9ec3-950d986eac6f/images/7823ca3c-4201-4283-8c42-3ccd777a0ee6.jpeg) Logging and Auditing: Firewalls maintain logs of network activity, aiding in monitoring, analysis, and compliance with security policies.

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Original Source: https://yourviews.mindstick.com/story/3293/what-is-the-purpose-of-firewalls-in-computer-security

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