UK police are raiding homes belonging to alleged members of the DarkMarket identity fraud website.
An FBI agent is said to have infiltrated the membership of DarkMarket. He then managed to become an administrator for the site, which was recently closed down by him when he said it had come under too much scrutiny by the authorities.
Police across the world are now homing in on members, who have left a trail of their activities on the site.
An alleged German bank card forger has already been arrested for his involvement, and UK police have now raided addresses in London, Manchester, Leicester, Humberside and South Yorkshire. Other raids have taken place across the US and Turkey, among other countries.
The UK's Serious Organised Crime Agency (Soca) is involved in the UK operation and is closely working with the FBI on the operation.
What some victims of the alleged fraudsters will be asking, however, is whether the FBI should have wound up the site earlier.
It effectively provided a home for the fraudsters to trade over a period of two years. A DarkMarket site server is said to have been located in an FBI building in Pittsburgh.
The DarkMarket site was exposed as an FBI run site by a German radio station.