Yesterday's iOS 7.0.6 update provided a fix for an SSL connection verification issue, which turned out to be a major security flaw in the operating system



From MacRumors:

In a support document, Apple noted the patch repaired a specific vulnerability that could allow an attacker with a "privileged network position" to capture or modify data protected by SSL/TLS. In other words, iOS was vulnerable to a man-in-the-middle attack where an attacker could pose as a trusted website to intercept communications, acquiring sensitive information such as login credentials and passwords, or injecting harmful malware.

  OS X Vulnerable to SSL Bug Patched in iOS 7.0.6 Update