I only use Facebook like every month now but it always asks about my phone number. It also asks me to enable a log-in short-cut every time. This last time, th

I only use Facebook like every month now but it always asks about my phone number. It also asks me to enable a log-in short-cut every time. This last time, they crossed a line: they pre-filled the field (I do NOT have this set up in the browser), meaning they already figured out my number (probably by scrubbing some friend’s phone) and just want it confirmed. To hell with that. I would not be surprised if every spam call in existence can be traced to Facebook.