Question

firewall is used in PC for​

Answer 1

Answer:

A firewall is a system designed to prevent unauthorized access to or from a private network. You can implement a firewall in either hardware or software form, or a combination of both. Firewalls prevent unauthorized internet users from accessing private networks connected to the internet, especially intranets.

Answer 2

Answer:

Firewalls prevent unauthorized internet users from accessing private networks connected to the internet, especially intranets.