[OPSEC/Computer] Can a USPS X-Ray machine see through this?

Hello,

I was wondering if a USPS X-Ray machine would be able to see through this? https://www.anonimg.com/img/db30c5daec153a6819bb4d0ec47a1b66.jpg

If I should remove this post then I will. Sorry but really want to know.


Comments


[11 Points] Theeconomist1:

According the AMA done by the USPS employee, he stated that domestic mail is not x-rayed unless there is suspicion. I think this makes absolute sense. With the volume of mail going through USPS and how relativelyquickly they deliver the mail, I don't think there is any way they xray any appreciable volume of mail. Now if a pack is suspicious or profiled, obviously all bets are off. But from a random perspective, it does not appear they x-ray domestic mail and certainly I don't believe they xray any appreciable percentage of domestic mail.


[6 Points] Vendor_BBMC:

Is it made out of lead?

Yes, unfortunately X-rays around 50kev are almost totally stopped by a few mm of lead. This would stick out like a sore thumb on an x-ray, a big black rectangle.

It would be so unusual to see something totally opaque to x-rays that customs would definitely have to have a look at it.


[6 Points] None:

Does USPS even xray mail?


[5 Points] pigs_are_dumb:

they make lead MBBs but they are expensive and show up more than mylar does. Aluminized mylar is good for smell, there are different styles and thicknesses that are used. Some int'l vendors used to declare stuff as 'magnetic media' like HDDs or VHS tapes to avoid xray. Newer backscatter xrays use less power but provide better imaging than old traditional xrays, so basically they are seeing something like what the TSA sees when they scan your luggage. Good vendors know about this and expect it.
The one thing NO ONE expects, is the Spanish Inquisition...


[3 Points] sapiophile:

Yes, just like an X-ray can see through MBBs.

Blocking very low-power RFID tags and blocking high-powered X-rays are a very different thing. Though they both use electromagnetic radiation, different wavelengths (frequencies) of EMR have very different penetrating properties. If you've ever seen or had a medical X-ray image taken, you might notice that the uninteresting parts of the body are shielded, usually with an apron. And that apron uses very heavy, thick lead plates - because that's what's necessary to block X-rays.

What's necessary to block something like RFID, on the other hand, is much less intense, due to the much lower overall energy of the radiation. A simple sheet of heavyweight aluminum foil generally provides sufficient shielding for these waves. This is almost certainly what's used in this product, although I would be skeptical that this product even uses foil of a proper thickness, or even ensures complete coverage.

So, here's the takeaway: You could achieve the same (or probably better) results as this product just by using some heavy-duty aluminum foil that wrapped completely around an item with folded over edges. This will provide virtually no protection from Hard X-Rays as are used to scan items, just as MBBs do not. Don't throw your money away on something that won't actually achieve what you want (blocking X-rays), but if you want to try, save your money and just get some heavy-duty aluminum foil.


[-1 Points] clairvoyance1:

Gonna take a random shot in the dark and say nah