One-off programme examining how organised crime has moved online in parallel with the rise of internet banking and online shopping, and how one man in particular became prolific in cheating people out of millions. Using data hacks, spam email and malware, criminal gangs are now able to steal account details, then freely trade them on the so-called dark web. Getting personal, they will telephone their victims convincing them to transfer money into an account they control, or will extract personal information which allows them to clear bank security and takeover bank or credit card accounts. One man has taken this fraud to another level. Every day he calls the banks masquerading as a different customer. Dubbed by detectives Mr Posh he is a master of disguise and accents. He impersonates the voice of everyone from an Asian businessman to a female pensioner. Mr Posh has tricked the banks, traumatised his victims and stolen tens of thousands of pounds in one day.