If you are not already aware, there is a major security risk with many Apple products. The issue affects both iOS and Mac OS X and would potentially allow a hacker to obtain your private information and/or potentially change it whilst in transit. The good news is there is a patch available.
For those who have an iPhone or iPad then you should update to iOS 7.0.6. To do this go to Settings > General > Software Update > iOS 7.0.6.
If you have a Mac and you are running Mountain Lion or later then you can update by opening the Mac Store app and select the update – “OS X version 10.9.2”. Alternatively, on the top left hand corner click on the Apple logo and select “Software Update”. Either option should give you the chance to update and patch your system.
If you don’t update then many applications such as Safari, iMessage and FaceTime would send your data in an insecure manner. Any credentials you use would potentially be at risk of being intercepted, if in range. The update takes less than 10 minutes so there is really no reason not to update.