On Tuesday morning Apple revealed that some of its computers had been infiltrated, perhaps by the same Chinese hackers who had also attacked Facebook, in what Reuters described as the "widest known cyber attacks targeting Apple computers used by corporations." Later Tuesday afternoon, responding quickly to the hack, Apple released an update for Mac computers that closes the security hole those hackers exploited in their attacks, making the patch available for all Mac owners.
Needless to say, if you own a Mac computer, you should probably go download that update right about now.
The update, which you can read about on the Apple website here, disables the Java plug-in on all Mac browsers. Hackers used a hole in Java to infect the Apple computers, according to a Reuters report.
To download this update, open up your App Store, click on the Updates tab and install the Java for OS X update. Apple has also made the critical update available for download from its website right here.
You'll need to shut down all of your web browsers before you install the update; but don't worry, HuffPost will still be here when you get back (and the web will be safer for you, too!).