Can I trust this program?

Crack-O-Matic is free and open source, does not require registration and respects your privacy. Feel free to review the source code and its dependencies, which all have sufficient reputation to be in the Debian repositories.

Limitations

Obviously, Crack-O-Matic can only check passwords of domain accounts. There may be systems which may be critical to your business operations but are not joined to a domain, so their accounts are not subject to your password policy. This could be appliances, Linux systems, firewalls, and so on. Don’t forget to pay special attention to these systems.

The same goes for local Windows accounts. These are not visible to Crack-O-Matic. You should use LAPS to manage those if you don’t already.