SP3 itself was released in 2008, meaning that SP2 had a two-year “wind down” until it stopped receiving support in 2010. That means everyone who had problems with our certificate were:
- Using an OS that has been obsoleted by three further OS versions if you include Windows 8.
- Using an OS that had reached its actual end-of-life after ample warning and extensions from Microsoft.
- Using a version of that OS which had been unpatched for nearly four years.
Combine the latter two, and you have people running an OS who never installed the SP3 update during its entire six-year support lifetime, which is longer than Windows 7 had been available.
In light of this, I can see why businesses haven’t been too worried about the end-of-life for Windows XP. It’s clear that those affected are not running SP3 on those systems, meaning they were already four years into their own unpatched period.
And if they “just happen” to get viruses and need cleanup, that just seems to be part of “having computers in the business.” Even if the machines were up-to-date, there would still be a few 0-days and plenty of user-initiated malware afflicting them. There’s little observable benefit to upgrading in that case… so little, in fact, that the business has opted not to take any steps toward it in half a decade.
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