AbruStop Privacy Protection is an OS X application firewall that protects the customer's private data by preventing known and unknown software from secretly establishing a connection to the internet. AbruStop has the following features: code signature validation, multi-protocol support, real-time configuration, connection intervention, unobtrusive operation, connection unity, stealth mode, essential service option, network suspension, always on, resource-friendly, network-address aware. Visit
http://www.ticucise.com/abrustop for more information.