From ZoneAlarm:ZoneAlarm Free Firewall 2018 protects your PC with the world’s best firewall solution. Our personal firewall manages and monitors all incoming and outgoing traffic and shields you from hackers, malware and other online threats that put your privacy at risk.

Block unwanted traffic. Become invisible to hackers. Control program access to the internet. Guard your personal data.

Key features: Personal Firewall. We monitor programs for suspicious behaviors while spotting and stopping internet attacks. Our firewall protects you from malicious programs and allows you to make yourself invisible to hackers by using Full Stealth Mode. Identity Protection Services. We assist in preventing identity theft by guarding your personal data from hackers. We provide you with daily credit monitoring, in addition to providing you with victim recovery assistance (US only).