I got an email on one of my domains today.
It was sent to an account I don’t have so it fell into a catchall account for that domain and was forwarded to an account I monitor.
The email informed me that the sender had hacked some account of mine, monitored me accessing sexually explicit sites, and threatened to tell all my contacts.
The “hacker” felt $890 was the right price for my silence.
This is not spam, nor is it a phishing email. This is extortion.
Spam is unsolicited but potentially valid email.
Phishing emails require some method of compromise (e.g., redirection to a site that would side-load malware, a request for credentials, a lure to install malware).
This is simply extortion.
Nothing to do here but disregard it.