There was a good article in the NZ Herald talking about how most people are aware of security on their computer but not on their mobile phone or tablet.
If you are browsing or downloading on your mobile, do you have antivirus and security software installed?
The article talks about this and how all of the information on your mobile (like contact lists, credit card numbers) may be freely available to Google, Apple, Facebook, hackers or application providers. If you have accepted installation terms and conditions for an app you may have consented to give away your privacy. You can read the full Herald article here:
Apple dominate the mobile market followed by Samsung – apparently 2/3 rds of Americans will have an Apple Phone (or their latest device) by 2017. Hopefully there will always be good alternatives and Apple will not come to so totally dominate the way Google now does in the search market.