Firewall in computer is used for

Firewalls in computers are used to monitor and control incoming and outgoing network traffic based on predetermined security rules. They serve to protect the computer or network from unauthorized access, malicious attacks, and potential threats by filtering traffic and blocking suspicious or harmful data packets. Firewalls act as a barrier between a trusted internal network and untrusted external networks (like the internet), thereby enhancing overall security and safeguarding sensitive data and resources from cyber threats.