Frankly, I consider this a minor issue since testing Little Snitch’s Classic compatability marks the first time I’ve fired up the Classic environment in many months. It can either permit or deny all connections from all programs running in Classic limitation by application, URL, or port is not possible. The only real drawback of Little Snitch is its inability to identify connections made by programs running in the Classic environment. (Unfortunately, Little Snitch can’t tell you what data the program wants to transmit.) You then have the option to allow or refuse the connection, or to create a rule to govern future attempts. If a program tries to access the Net, a dialog box appears telling you the program’s name and the URL and port it is attempting to open a connection with.

While in some cases this sort of behavior may be desirable, it concerns me that the default is generally to permit such connections without asking the user first, and frequently companies fail to disclose just what information they suck from your computer.Įnter Little Snitch, a simple preference pane program that blows the whistle on programs attempting to access the network.

It’s become increasingly common for programs to “check in” with their developer when you start them up, whether to look for available upgrades, prevent piracy, or permit companies to track your actions.

Trial: Fully-featured (quits after three hours)

Little snitch software