This type of scam is circulating again. See below a screenshot. Typically they are sent to a large number of email addresses retrieved after a certain breach. The scammer demands a payment in Bitcoin threatening to expose your secrets. In most cases they have only your email address and nothing else. In some rare cases they may list an old password (retrieved at some non-UVic breach) of yours in order to convince you. Do not re-use passwords. And of course do not answer those scams (even for fun!)