The gaming community tend to be popular targets of hacking extortion, where victims are subjected to a number of demands.
The criminals demands usually involve money and threaten the victim that if they don't cooperate, the harrassment will continue. Other cases have seen online games being taken over and hackers demanding money to unblock the users access.
Websites have also been hacked, where website content is altered and victims denied any access to the website until they have paid the offender. In some cases, this has occurred as a result of failed business negotiations.
For more information about the different types of fraud visit Action Fraud's A-Z of fraud.