ONLINE criminals are attempting to trick victims into believing they have been filmed on their computer while watching pornography, Action Fraud is warning.

In the latest sextortion scam, conmen are sending threatening emails using their target’s own password in the subject line and are demanding payment, threatening to send the recording to family, friends and co-workers.

Action Fraud called it a “new twist not seen before” and received more than 110 reports from concerned victims already.

The emails demand payment in Bitcoin and claim the target has been filmed on their computer while watching adult content.

Action Fraud says the email may typically read: “I'm aware, XXXXXX is your password. You don't know me and you're probably thinking why you are getting this mail, right?

“Well, I actually placed a malware on the adult video clips (porno) web site and guess what, you visited this website to experience fun (you know what I mean).

“While you were watching video clips, your internet browser started out working as a RDP (remote desktop) with a key logger which gave me access to your display screen as well as web camera.

“Just after that, my software program gathered every one of your contacts from your Messenger, Facebook, and email.”

The scammer goes on to claim they made a double-screen video, one part showing the pornographic content and the second displaying a recording from the victim’s own webcam.

The email goes on to say: “Well, I believe, $2900 is a fair price tag for our little secret.”

Action Fraud found that almost all of the targeted accounts were compromised in previous data breaches and the charity suspects the fraudsters may have gained passwords that way.

Their advice is to not pay criminals as it only highlights vulnerability and so could be targeted again.

They also suggest a change of password immediately and with all other accounts where the same code is used.

Where possible, two-factor authentication is recommended.

The charity warns not to email the conmen back; to always update anti-virus software; and cover the webcam when not in use.

Anyone who received one of these emails and has paid should report the incident to police on 101.

Those who have not paid can report it as a phasing attempt to Action Fraud on 0300 123 2040.