Google Project Zero researchers discovered this bug in May, 2017. They notified Intel, AMD, ARM and likely other chip-makers (Qualcomm, Broadcom, Marvel, Microtek, Huawei etc) directly. Intel is just the lead actor in this mega-production.<p>See this bug report by Jann Horn: <a href="https://bugs.chromium.org/p/project-zero/issues/detail?id=1272" rel="nofollow">https://bugs.chromium.org/p/project-zero/issues/detail?id=12...</a><p>Then each of these chip makers would have notified their direct customers who make original equipment (motherboards, SoCs, Add-on card etc). Then they would have to notify their firmware/software partner/vendors who have to fix the issue.<p>Since this was such a serious issue and at least 2 quarterly results were posted by all these publicly traded companies, I'm sure their lawyers, their external independent risk consultants, key members of the board and key investors were also told - especially as CYA when deciding to keep it a secret while giving market guidance (which had to be knowingly false?).<p>Each of these disclosures would have gone with boilerplate embargo legalese (bad things will happen to you if you speak about it). But all of them would have taken actions ranging for good to bad to evil (from insider stock trading to actively looking for ways to exploit the bug for competition spying).<p>While all this is going on, why would government not have known about this? Wouldn't one of the government certification programs like NIST FEDRAMP mandatorily require them to be notified of any vulnerabilities monthly?<p>And of course, all govt spy agencies would have surely known about this vulnerability as early as July/August given the amount of cross-continent communication that would have happened on this topic. And it's a whole another matter if they used the exploit for any operational/tactical advantage for any ongoing operations or as a backdoor installation for future operations, it's anyone's guess. If they did do that, we cannot be surprised because that is definitely their job. Thinking any other way is not part of the security mindset. It's not the trust everyone kind of thinking that lead to discovery of this vulnerability in the first place.