But, consider this... The stories that are reported are actually the spying failures! The successes escape notice.
Success-to-failure ratios are similar... most airplanes don't crash; most people don't drown in their baths; most houses don't burn to the ground whenever the stove is used... and, most spying goes undiscovered.
Why? Because few look for the tell-tale signs. We do.
Even though no one really knows how much bugging is going on, we can view the issue with common sense... like a statistics puzzle. Unfortunately, the final picture is not comforting.
SpyCams and bugs are cheap and easy to obtain. Anyone can use them.
The result ... corporations and government agencies wisely conduct regular inspections.
How do we know? More inspections are entrusted to us than anyone else.