Apple has released iOS 6.1.3 Tuesday (Today) to fix several bugs and a newly discovered security flaw. The updated iOS is available immediately for users to download and install.
Among the updates are a fix to a security flaw that allowed someone to bypass the iPhone's security code and access apps and other information, and a fix to Apple Maps for China and Japan.
To download the update, go to general--> software update--> and then download and install.
You too can then be on iOS 6.1.3.6.4.7.8..2.7.3.4.2.4.6.7........ :-)