security Delete Certificate

Delete a certificate from a keychain. If no keychain arguments are provided, the default search list is used.

Syntax
      delete-certificate [-h] [-c name] [-Z hash] [-t] [keychain...]
            
Options
   -c name         Specify certificate to delete by its common name
   -Z hash         Specify certificate to delete by its SHA-1 hash
   -t              Also delete user trust settings for this certificate

The certificate to be deleted must be uniquely specified either by a string found in its common name, or by its SHA-1 hash.

“Security is mostly a superstition. It does not exist in nature, nor do the children of men as a whole experience it. Avoiding danger is no safer in the long run than outright exposure. Life is either a daring adventure, or nothing” ~ Helen Keller

Related macOS commands

Local man page: security - Command line help page on your local machine.
security - Administer Keychains, keys, certificates and the Security framework.