https://www.washingtonpost.com...e-new-exploit-apple/

Get your Apple Inc. devices updated. The company just released a big bunch of security updates on 2021 September 13 that closed some rather important security holes for macOS, Safari, watchOS, iOS, iPadOS.

Short version is that CoreGraphics and WebKit has security holes that allow arbitrary code to be run when processing/displaying PDF file or web content, which may be triggered when apps like iMessage “previews” a message sent to you without you clicking/tapping on anything.

Report is these security holes are being exploited, including by state actors.

I updated my phone. My iMac runs an older generation of OS; do I still have to update it?

Don't panic. It's a big vulnerability but they don't expect that it would be exploited against the average person.

But do update.

Did it last night.

Updates always slow my iMac down so much

J

Jack: Of course, because the updates load on all this other stuff that interfaces with new products that were introduced since your previous update.