Microsoft have laid the blame for the WannaCry cyber attack on the NSA who they accused of "hoarding" software vulnerabilities and code to exploit them.
Information now coming out as Microsoft's patch for the problem is analysed appears to show that Microsoft had the fix ready in February.
If this is true then it means that Microsoft purposefully witheld the patch for non-supported operating systems but released it for supported versions.
It also means they still have engineers and developers working on these old operating systems.
Is there a behind the scenes support deal, akin to the one the UK government dropped, still running? Is Microsoft sitting on "cures" for other possible "outbreaks"?
It's a sinister proposition.