What is a firewall?

A firewall is a network security device that monitors and controls incoming and outgoing network traffic based on predetermined security rules. It acts as a barrier between a trusted internal network and untrusted external networks, such as the internet, to protect against unauthorized access and cyberattacks. Firewalls can prevent malicious software from accessing or spreading through a network, as well as block harmful traffic and filter out unwanted content. They are an essential component of any organization's cybersecurity strategy to safeguard sensitive data and maintain network integrity.

This mind map was published on 27 April 2024 and has been viewed 100 times.