I have a friend who uses an electronic key fob to enter and exit his apartment building. The fob isn’t metal, but it grants access electronically.
He occasionally engages in private activities.
My question is: Does this key fob log every entry/exit? He’s cautious with cell phones and leaves them at home, but wonders if the key fob could potentially cause problems.
Entirely depends on how the reader system is setup and configured. It’s likely, but not a guarantee.
They’re a passive, no power system. They require energy from the reader to function. They’re not exactly GPS trackers, but maybe someone somewhere has figured out a way to track them.