Importance of Firewall in Computer System Security

Firewall is a crucial component in ensuring the security of a computer system. It acts as a barrier between the internal network and external network. It filters the incoming and outgoing traffic and allows only the authorized traffic to enter into the network. Here are some of the reasons why Firewall is essential for computer system security:

1. Protection against hackers

Hackers are always looking for vulnerabilities in the computer system to exploit. They try to gain unauthorized access to the network, steal sensitive information or install malicious software. Firewall blocks the unauthorized access attempts by analyzing the incoming traffic and checking if it meets the predefined rules.

2. Protection against viruses and malware

Viruses and malware can cause serious damage to the computer system. They can steal information, corrupt files, and even render the system unusable. Firewall helps in preventing the viruses and malware from entering into the network by blocking the suspicious traffic.

3. Control over network traffic

Firewall provides the ability to control the network traffic. It allows the network administrator to set rules for incoming and outgoing traffic. This helps in preventing the unnecessary traffic from entering into the network and also helps in optimizing the network performance.

Conclusion

In conclusion, Firewall is an essential component in ensuring the security of a computer system. It provides protection against hackers, viruses, and malware, and also helps in controlling the network traffic. Therefore, it is important to keep the Firewall turned on in the computer system to prevent any unauthorized access or malicious activity.