i’m still reading through the wired (disclaimer: behind soft paywall) article, but wanted to share since it seems like this is a fairly new report. the article mentions that intel was informed as far back as a year ago, but asked the researchers to delay their reports until intel could release a fix. so far amd and arm processors seem to be in the clear and of course intel is saying it is less severe than the researchers.
the second link (still haven’t read it) appears to be from some of the researchers and has a tool to test if your system is affected at the bottom. according to the wired article, this affects processors made as far back as 2008 and intel only just began selling some with the fix baked in so that should be most of the ones still in service.