Police warned social media users on Thursday to be aware of people using online sex to extort money, usually from men.
The cyber crime office said it has received complaints from people who fell victim to what is commonly known as sextortion.
The perpetrators use Facebook to approach their victims who are usually men, police said. The user receives a friend request from an attractive, scantily dressed woman, who then communicates with him through chat.
The woman invites the guy to have a video call using Skype and if he agrees, he is then lured into having cybersex.
After the act, the user receives a message informing him that he had been recorded and he must pay up or else the video would be published online.
Police urged the public not to respond to such requests and take some basic measures such as blocking the suspicious profile.
Users can also send a request, either through police, or the CyberEthics organisation, to have the profile blocked.
They can also deactivate their accounts for a couple of weeks so that the perpetrators cannot locate them, and they should refuse to send any money.
Anyone who fell victim should report the case to the police and immediately inform the cyber crime department on 22808200.