[thirduncle]

Countermeasures?

[aeleos]

I bet some RF absorbing material or something that reflects RF at weird angles would probably break it. Or an active RF transmitter.

[John_KZ]

Build an electronic warfare device that makes it look like hundreds of people are inside, all pointing guns outwards.

[sudhirj]

Make all walls a Faraday cage / concrete. If you can’t get cell or radio reception inside, you probably aren’t leaking anything either.

[kawfey]

anything metal in the way. I'm sure the image would be a lot less clear if the wall had metal studs instead of wood.

[femto]

Carry something metallic, so the neural network no longer classifies your reflection as human?