Matt Falder is the UK’s worst “sextorter”. A convicted serial sex offender, he used online accounts to blackmail over 40 victims into sending him naked photos, perform sexual acts and even getting one person commit rape. He was also at the time, a Cambridge University student and one of the Bad People team shares their story of coming face to face with him. Dr Julia Shaw and Sofie Hagen discuss how the online world has created a new type of crime that targets and exploits young people in the most horrific way possible.This episode contains audio from: Sky News, CBSN and National Crime AgencyWarning: This episode contains strong language and descriptions of violenceCREDITS Presenters: Dr Julia Shaw and Sofie Hagen Producer: Caroline Steel Assistant Producer: Simona Rata Editor: Rami Tzabar Music: Matt Chandler Academic Consultants for The Open University: Dr Lara Frumkin and Dr James Munro Commissioning Executive: Dylan Haskins Commissioning Assistant Producer: Adam Eland #BadPeople_BBC Bad People is produced in partnership with The Open University and is a BBC Audio Science Production for BBC Sounds.