How to know, if my smartphone has been hacked?

Do you feel uneasy while installing new apps fearing that it might have some hidden functionality that might leak your personal information or cause you harm in other ways? Do you feel your phone has been hacked but aren't sure about it? Read the tips by our experts to find out if your phone is hacked or not.

We all are threatened by the hackers. Our smartphone carries almost every important information about us. We certainly need to keep them safe. But how to know if my smartphone is still safe? Is there any particular indication that my device has been hacked? Please enlighten on this.