The paint sounds like yet another sting operation to catch the goofuses who think they can hide RF on the cheap. The folks on the TSCM-L list think the paint is pure snake oil, that the electrophysics of it are crap. Still, phony Tempest protection is a pretty good business, no doubt promoted by the spooks who get better results from signals calling attention to themselves by way of half-assed protection: -- here, look at me trying to shield my nonsense. Several US companies have done quite well selling so-called NSA-grade Tempest protection, even requiring an export license for the hoakum, in cahoots with the agency which welcomes the pointers to users. Joel McNamara's Tempest site has a several references to RF snake oil, some of which appears to be honeypot-grade. Relatedlhy, we assume that the only reason NSA released to us a batch of Tempest docs was to promote the sale of weak systems. Docs which describe the truly good protection have never been released, presuming there is such high-quality of RF security. Tempest could be a diversion from more intricate and interception. Over-confidence in a security system is a bellweather for successful attack. Someday, now 5 years and counting, we hope to get NSA FOI docs on the Brit's Non-Secret Encryption which allegedly was invented before the PK if Diffie Hellman Merkle, and whether any of that pre-PK information was leaked so that DHM could access it, by guile or by accident, NSA by then having developed a crack, and set in motion the faith-based use of "unbreakable" public crypto.