I have the habit of leaving the systems I use fully up to date and I’m using non-POSReady XP and I’m looking for critical updates that were released for XP after their support ended in 2014. I’ve found 3:
KB4012598 - “WannaCrypt” patch (12/05/17)
KB2964358 - IE8 security update (05/01/14)
KB4500331 - “BlueKeep” patch (05/29/19)
Do you know any more non-POSReady XP KB released after the end of your support?