Mobile phones are not the latest version of communication technology but it is still common, and people are like using them. But as the other technical equipment there is a possibility to heck it: steal data, start phone calls and write SMS. Also download viruses. Companies are on the way to create relatively secure operating systems but trickery and social engineering continue to manipulate people. For example, cyber criminals disguise files to make them look like interesting freeware. Bluetooth users may find themselves asked: "Would you like to install this program now?" When they click "no," the question persists. The reason why people get infected: because they repeatedly click 'no' and obviously 'no' doesn't work and so they click 'yes' and they get infected. How you can prevent? Just walk away if you meet the question and then go into your Bluetooth settings and disable Bluetooth completely or make it hidden for all other devices.
At the same time there are users who ignore the security warnings and therefore they install malware to their phones. Also it is possible that some problems may be caused by unclear instructions on the users interface. Phone user’s ignorance is the biggest reason of having problems with their phones.

www.infosecuitylab.com