Isn’t this the same as zero-day vulnerabilities? Typically only a bunch of people out there know how to take advantage of such holes, and eventually they get fi

Isn’t this the same as zero-day vulnerabilities? Typically only a bunch of people out there know how to take advantage of such holes, and eventually they get fixed. I guess if public key cryptography gets broken, only a bunch of people would know how to take advantage of it, and eventually it would get fixed.