Bought A New iPhone or iPad with Upgrade to iOS 8?

The most important privacy settings in iOS 8

The minute you download and install iOS 8, the latest version of Apple's mobile operating system, you should take note of these privacy steps to lock down your device.

iOS 8 has a number of new features tied to your location. It also has new privacy settings, allowing users to limit how long data is stored for, such as message expiry features and new private browsing settings. Before you do anything like customizing your phone, loading new apps, or syncing your data for the first time, these settings need to be checked -- and if necessary, changed.
                                                                                                                                        Courtesy ZDNet