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Re:macOS unable to open any non-Apple application by dylan604 on Thursday November 12, 2020 @06:34PM (#25076811)
I keep reading in the tweets how all Macs are unusable. Is this an OS bug that doesn't effect older OSes? I'm on Mojave on my 2017 MBP, and have had zero issues at all.

When was `trustd` introduced?

Re:macOS unable to open any non-Apple application by plorkyeran on Thursday November 12, 2020 @08:22PM (#25077717)
Checking for notarization on each launch was introduced in catalina. Older versions have trustd, but it was only used for the gatekeeper checks added in 10.8.
Re:macOS unable to open any non-Apple application by TMWNN on Thursday November 12, 2020 @07:50PM (#25077439)
`/usr/libexec/trustd` exists on Mojave, too. There's a (very unhelpful) manpage.

I think you were just lucky to not open non-Apple applications during the outage.

Re:macOS unable to open any non-Apple application by ericd on Thursday November 12, 2020 @08:28PM (#25077761)
I ran into this on trying to load a new video file on VLC, with Mojave, so I guess it's not just apps, but maybe any new file load.
Re:macOS unable to open any non-Apple application by jwineinger on Friday November 13, 2020 @09:06AM (#25082220)
My 2018 MPB on Mojave had some serious issues launching apps for a little while yesterday (3PM central) afternoon. It seemed to resolve within an hour though. Not sure how that lines up with the outage described here.