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Most of my office windows at Boeing had little ultrasonic buzzers on them to prevent such an attack. On my offices was actually in a large farad cage to reduce
by balls187 6y ago
Most of my office windows at Boeing had little ultrasonic buzzers on them to prevent such an attack.
On my offices was actually in a large farad cage to reduce/eliminate EMF leaks from workstations.
- acidburnNSA 6y agoWow. That's super interesting. So it was considered a credible threat. Huh you can actually buy such things on Amazon. https://www.amazon.com/Shomer-Tec-SHLSD-Laser-Surveillance-Defeater/dp/B00ABV7J0C https://www.amazon.com/Shomer-Tec-SHLSD-Laser-Surveillance-D... Edit: yikes, those reviews...
- spitfire 6y agoWoah. Check out the recommendations on that page. There's some great stuff in there.
- ravenstine 6y agoIt's basically a 555 timer, some resisters, and a piezo buzzer. Hardly worth 50 bucks! You can build one yourself for a mere fraction of that.
- freehunter 6y agoFor a big business like Boeing, buying one at $50 would be far more palatable than building one from parts.
- ravenstine 6y agoDang, you're right! This is a business I need to get into.
- zszugyi 6y agoI'm sure getting vetted to be a vendor for DoD/Government projects is super easy.
- culturestate 6y agoVendor qualification isn’t easy but it’s also not especially difficult as long as you’re an American citizen with no criminal history. Figuring out the paperwork is half the battle. Being selected as a vendor, on the other hand...
- 55555 6y agoDo you have any links where I could read about either topic?
- culturestate 6y agoAs an SME, everything starts with the GSA - there’s a good overview at https://www.usa.gov/become-government-contractor https://www.usa.gov/become-government-contractor 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).
- SEJeff 6y agoI take it you work on some "government" projects? I wonder if that is all TEMPEST grade shielding.
- akamia 6y agoWhen I worked at Boeing, we even had them on the windows of offices that weren't being used for government projects. The company's commercial business was also a target for spying so they were very protective in general. 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.
- balls187 6y agoYeah, used to work for Boeing's defense groups.
- jascii 6y agoUltrasonic buzzers? I kinda fail to see how that would help, shouldn't be too hard to filter out the ultrasonic range noise.
- Zenst 6y agoBasically drowns out the room vibrations upon the window as it is a in direct contact. You can make your own with piezo discs and small circuit to drive them. That and high frequency will not cause added noise noticeable to humans.
- noir_lord 6y agoNot if it's random. It's the vibrations from sound on glass they want and those are tiny by comparison to the input.