How does firewall Work?

Firewall work like a filter between your computer network and the internet. You can program what you want to get out on the internet. Firewalls can be used in numerous ways to add security to your home or business. This ensures that your network is secure from cyber attacks.

Firewalls in business protection:

Large corporations employ multiple firewalls to protect their complex network data

On the outbound side, firewalls can be configured to prevent employees from transmitting sensitive data outside of the network

On the inbound side, firewalls can be configured to prevent access to certain social networking websites

Firewalls can prevent outside computers from accessing computers inside the network

Firewalls for Personal Use:

For home use, firewalls protect computers from malicious software(malwares)

Firewalls prevent identity theft and prevent hacking techniques such as phishing of personal data

There are two ways a firewall can be programmed- to prevent traffic to pass through unless it meets a certain predefined criteria

Or

Allow all traffic to pass through except data that meets predefined criteria.