Name: Little Snitch
Mac Platform: Intel
OS version: 10.8 or higher
Refined appearance in configuration UI to better match the look of OS X Yosemite.
Improved user experience when a connection attempt was automatically confirmed after a timeout.
Fixed an issue causing a first time installation of Little Snitch to hang under rare circumstances
when attempting to restart the computer.
Fixed a bug introduced in Little Snitch 3.5 causing “Until Quit” rules to remain enabled after
the process quit.
Fixed an issue in Network Monitor causing the destination of a connection to be wrongly
shown as "0 Servers".
Improved compatibility with Xcode Server.
1. you need to completely remove ANY leftovers (.plist files, preferences, etc) from previous install
2. use serial to register.
Little Snitch... A firewall protects your computer against unwanted guests from the Internet. But who protects your private data from being sent out? Little Snitch does!
As soon as you're connected to the Internet, applications can potentially send whatever information they want to wherever they want.
Sometimes they do this for good reason, on your explicit request. But often they don't. Little Snitch allows you to intercept these unwanted connection attempts, and lets you decide how to proceed.
Little Snitch informs you whenever a program attempts to establish an outgoing Internet connection. You can then choose to allow or deny this connection, or define a rule how to handle similar, future connection attempts. This reliably prevents private data from being sent out without your knowledge. Little Snitch runs inconspicuously in the background and it can also detect network related activity of viruses, trojans and other malware.
More info: http://www.obdev.at/products/littlesnitch/index.html