http://www.tomsguide.com/us/how-to-apple-emergency-patches,news-18355.html
The flaw essentially causes SSL not to work properly so people on public WiFi can do a man in the middle attack on your SSL connections.
The flaw essentially causes SSL not to work properly so people on public WiFi can do a man in the middle attack on your SSL connections.
Even worse, the flaw seems to affect recent versions of Mac OS X, for which a patch is not yet available.
If you have a device running iOS 6 or 7, and you're not connected to a stranger's Wi-Fi network, patch it now — we've got instructions below. If you're running Mac OS X on a laptop, don't use public Wi-Fi networks, even those at your favorite coffeeshop.
The flaw also affects second- and third-generation Apple TVs, which received a patch.
"I know what the Apple bug is," tweeted Matthew Green, a cryptography expert who teaches at Johns Hopkins University in Baltimore. "And it is bad. Really bad."