What is a firewall?
Firewalls are software programs or hardware devices that filter and examine the information coming through your Internet connection. They represent a first line of defense because they can stop a malicious program or attacker from gaining access to your network and information before any potential damage is done.
But there’s more than one type of firewall out there. It’s important to understand the difference between hardware firewalls and software firewalls to best protect yourself at home and on the go.