After the release of iOS 7.0.5 that dealt with various network errors that primarily affected Chinese users, Apple has struck again quickly with iOS 7.0.6 (Build 11B651) along with iOS 6.1.6 (build 10b500) for iPhone 3GS and 4th-gen iPod touches adding a handful of minor fixes to those legacy units. Apple themselves say that iOS 7.0.6 is a basic security update that “provides a fix for SSL connection verification.”
All supported iPhones, iPads, and iPods should already have access to the update at the time of this writing