Assuming you haven't been living under a rock for the past few days, you may have heard that Apple's new iOS 7 update has gone live across almost all of its existing mobile devices. The update does its best to reset all of your settings back to the way they were before the update began. However, with a such a big upgrade, some settings are changed and others are added, meaning your iPhone might not be as secure following the update as it was before.

According to ZDNet, there are four major areas on your new mobile device with the new iOS 7 that you should have a look at before feeling secure with your device once again.

First, got o Privacy > Location Services and from that panel you can scroll down through all of your Apps and eventually read how the location services work and what the icons will look like on the new iOS. Read through this description and then you can opt to turn your location services on or off depending on how you want your phone to work.

Go to Settings > Privacy > Location Services > System Services > Location-Based iAds and have a look at the location-based iAds system that caused such a privacy stir back in June of 2010. This allows the iPhone to collect, use and share precise location data, including the real-time geographic location of your Apple computer or device." Users will likely want to turn off this service because, well, no one likes ads.

One thing worth turning on is found in Settings > Safari > Do Not Track. This will make it so that web servers that actually respect it will not track your mobile web browser. It's not fool proof and doesn't totally work, but it's worth turning on anyway.

If you're extra cautions, you can turn off your Diagnostics & Usage from the same setting menu that you turned off your iAds in. This service takes data from your iPhones usage and "anonymously" sends it to Apple to help it improve its iOS in the future. If you don't like the idea of Apple tracking your usage, turn it off, if you'd prefer the idea of giving data to Apple to improve on a likely iOS 8, be a part of the solution and leave it on.

A more complete rundown of these privacy features can be found at ZDNet HERE.