Reshared post from +Les Jenkins
Don't recall if I've shared this already, but in case I haven't: If you have an iPhone you'll want to update your firmware immediately.
Why Apple’s Recent Security Flaw Is So Scary
On Friday, Apple quietly released iOS 7.0.6, explaining in a brief release note that it fixed a bug in which “an attacker with a privileged network position may capture or modify data in sessions protected by SSL/TLS.” That’s the understated version. Another way to put it? Update your iPhone right now.