I'm trying to clean up my mac a bit and therefore always check through logs to see what maybe unexpected or otherwise strange. This time I see way too much going on in the logs in terms of lines per second and one thing that catches my eyes quickly is these CSSM exceptions. Here's an example:
Standard 19:46:21.455829 +0100 syncdefaultsd CSSM Exception: -2147411889 CSSMERR_CL_UNKNOWN_TAG
In this case it's from syncdefaultsd but they happen to be from differenct processes every few seconds. I've also seen them from com.apple.iCloudHelper, quicklookd, mdworker, launchservicesd and other macOS native services.
I found through google that some people posted about them already but didn't get a real answer. Thought I might find someone to help here.
Within Minutes i get thousands of these (just captured 10 minutes with nearly 9000 lines of CSSM Exceptions.