Please take a minute to read about iPhone OS update version 5.0.1. This update fixes a few bugs and also patches a few widely known exploits. We recommend that if you have an iPhone 3gs, 4, or 4s running OS 5 you apply this update ASAP. If you need any assistance applying this update please give us a call at 866-832-6209.
http://nakedsecurity.sophos.com/2011/11/12/apples-ios-5-0-1-is-out-should-you-upgrade/?utm_source=facebook&utm_medium=status+message&utm_campaign=naked+security