Even Watchogs let's friends sneak into your game and ruin your afternoon.
I hope this is optional as it could be very annoying.
I assume you can control that.
99.9% of my online friends live within 2 miles of me. While they're running around inside my PS4, I'll simply slip into the car, drive over to theirs, climb in through the window and.......
KERRRPOWWW!!!