If process "trustd" is using 100% (or any large amount) of CPU...
This is usually caused by a damaged system keychain. Delete /Library/Keychains/system.keychain. Restart computer.
Note 1: This causes saved passwords, certificates, etc to be lost, so use with caution. Note 2: Optionally, open keychain first and make a note of any important passwords. Note 3: Only applies to system keychain, which should not contain your passwords.
I usually write a blog post about once a week. The latest post can be viewed here: So Unaware: You can make you own choice, but be aware. (posted 2024-11-11 at 17:01:55). I do podcasts too!. You can listen to my latest podcast, here: OJB's Podcast 2024-08-22 Stirring Up Trouble: Let's just get every view out there and fairly debate them..