This data can then be discovered by hackers or people who are simply determined to find out what you've been up to.
You can beat them at their own game by using software to find and permanently delete your Whats App media before they do.
For example, using an i OS data eraser like i My Fone Umate Pro or i My Fone Umate Pro for Mac can get rid of all sorts of information from Whats App, delete media, chat history, and remove other kinds of data permanently.
It can also remove junk files that are just taking up space uselessly on your device.
You're reacting to everything coming at you and using your weapons and abilities well.