Anyone can get your personal information and read your private messages through your smartphone. Safety should therefore always be our top priority. With the help of a few short codes, you can find out more about the settings of your smartphone and work out whether or not your messages and information are protected and whether you're being tracked. Here, Bright Side has gathered the most useful codes for smartphones all in one video, together with some instructions on how to detect intruders.
[Source: Bright Side/YouTube.]