>A hallmark of a nefarious email (particularly scams but some sales attempts) is that they aim to deceive you.

The very first email has literally everything the company needs to locate and fix the issue without having to sign anything, log into anything, or pay anything.

That is the opposite of a nefarious email.

Nefarious "beg bounty" emails will tell you that you have an issue and then not tell you where it is -- asking for money before revealing the issue.