Thanks for the alert.

OP, your email is hidden in your profile page (at least at this moment), so how did the email sender know your email address? 

This was sent to my email account associated with my bitcointalk account.

I had my email not hidden, so I set it to hidden now. I agree that it was a targetted email, because my email was published and my bitcoin address has a decent balance which is also visible on my account.