ISSUE 23.21.1 • 2026-05-25 By Susan Bradley Microsoft is slowly but surely starting to roll out Secure Boot security fixes to more and more machines. I’m therefore lowering the MS-DEFCON level to 4. The May updates include not only the Secure Boot fixes but also a variety of other security-related patches. Start by installing KB5089549 […]

ISSUE 23.20 • 2026-05-18 PATCH WATCH By Susan Bradley Normally, I’d come to you at this time of the month and say, “Forget the operating systems — patch those browsers.” This time, I’m going to say, “Forget the operating systems — check the settings in your browsers.” Chrome hit the headlines two weeks ago when […]