On my offices was actually in a large farad cage to reduce/eliminate EMF leaks from workstations.
On my offices was actually in a large farad cage to reduce/eliminate EMF leaks from workstations.
Huh you can actually buy such things on Amazon.
https://www.amazon.com/Shomer-Tec-SHLSD-Laser-Surveillance-D...
Edit: yikes, those reviews...
Being selected as a vendor, on the other hand...
Past that, the hoops you'll need to jump through depend a lot on which department is handling procurement. If you look at defense-related contracts, you'll also have to go through personal clearance (which can be difficult by itself at higher levels).
To this day, the company's laptops don't have cameras and they have a whole process that you have to go through to use a camera anywhere on company property.
It's the vibrations from sound on glass they want and those are tiny by comparison to the input.