Not a computer geek (can recognize a computer after I fall over it 2 out of 3 tries)
However, have serious concerns about social media sites, such as Facebook. Frankly their own internal security sucks. I stay in touch w/ some of my grandkids thru them, and the accounts seem to get hacked once a week. I do use LinkedIn professionally, and they are a little better (not much)
As said, use the controls- and pay attention to what you put out there....
The internet is like herpes- it does not go away.
What we have here is... failure- to communicate.