A pizza delivery man who ran a website selling bank account and credit card details for two years faces jail.
33 year old Renukanth Subramaniam admitted setting up darkmarket.ws, which sold stolen information to around 2,000 people across the globe.
Blackfriars Crown Court heard he helped criminals potentially steal more than £100 million, with the site he ran from an internet cafe in Wembley.
The website was shut down after an undercover FBI operation in 2008.
Subramaniam's now been remanded for sentencing and has been warned to expect a lengthy jail term.
It comes after a warning by Financial Fraud Action UK to ensure you keep your bank details, including passwords and PINs, safe.