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Comment by cortesoft

12 hours ago

We would still know if certs were issued, though, which is the thing we want to check

How would you know it? If the CA was compromised, why would the attacker publish the fake certificates in CT?

Basically no one outside the major browsers verifies CT logs, so you can still attack a lot of people even without publishing.

  • The baddies also take a look at the CT logs and look for fresh wordpress instances that haven't yet been configured and will helpfully configure them for you within a few minutes.

We wouldn’t.

CAs publish to CT logs. If an attacker has the private key, nothing stops them from signing certs without the involvement of the CA or CT logs.