Sextortion is a type of cyber extortion that involves the threat of having sexual information, images or clips shared.
This is done to get money from you. It doesn't always matter if hte images actualy exist or not.
The extortion often takes place when a victim is asked to take off their clothes in front of a webcam. They can also be asked to perform sexual acts.
The victim believes this to be a private act but it is not. The victim doesn't know that they are being recorded.
The offender will then threaten the victi. THey may demand money. They may threatent o share the images or vieos on social media or share publicly.
There are some great tips for protecting hyourself here: https://www.scotland.police.uk/advice-and-information/internet-safety/sextortion/
If you or someone you know becomes a victim please contact the Police immediately (the police will take your case seriously and deal wstih it in confidence), Do Not Pay Them, stop communicating with the person, save all communications as evidence and deactivate your social media account.