One of the more notable features of Google Project Zero’s (GPZ) security research has been its 90-day disclosure policy. In general, vendors are given 90 days to address issues found by GPZ, after which the flaws will be publicly disclosed. But sometimes understanding a flaw and developing fixes for it takes longer than 90 days—sometimes, much longer, such as when a new class of vulnerability is found. That’s what happened last year with the Spectre and Meltdown processor issues, and it has happened again with a new Windows issue.
