ZoneAlarm
ZoneAlarm is a software firewall originally developed by Zone Labs, which was acquired in March 2004 by Check Point. It includes an inbound intrusion detection system, as well as the ability to control which programs can create outbound connections—the latter not available in the Windows XP Service Pack 2 firewall. , the newest release is ZoneAlarm Internet Security Suite 2009. ZoneAlarm was formerly known as Zone Labs, the usage of which is declining.