is mobile data security a big issue ?

i heard lot about mobile hacker can hack data from mobile is it true ? How it can be possible that some one hack data from our mobile? do any one know any software or app to secure data ? I use leo master app to lock my images and videos I need any other software to secure data ?

Do not put your private photos or info in your any mobile phone. We are all in open air. Your every info can be steal by someonelese easily since android is based on Linux os

Lock up your FaceBook, Whatsapp, Messenger and other important apps which may leak your privacy with LEO Privacy Guard 3.0 on android or iOS mobile phones and tablets.

Not for me as I have the best Security app, and that is Leo Privacy, you could also have it and have the best security in your device.