A few weeks after Ben Yeo travelled to Cambodia for what he thought was a job in a casino, he found himself locked up in a padded room. “It’s a combination between a prison and a madhouse,” he remembers. He was being punished for refusing to conduct online scams.

Scam Factories is a podcast and multimedia series taking you inside Southeast Asia's brutal fraud compounds. The Conversation collaborated for this series with three researchers: Ivan Franceschini, a lecturer in Chinese Studies at the University of Melbourne, Ling Li, a PhD candidate at Ca' Foscari University of Venice, and Mark Bo, an independent researcher.

In the second episode, Inside the Operation, we explore the history of how scam compounds emerged in Southeast Asia and who is behind them. We hear about the violent treatment people receive inside through the testimonies of two survivors, Ben, and another man we're calling George to protect his real identity.

The podcast series was written and produced by Gemma Ware with production assistance from Katie Flood and Mend Mariwany. Sound design by Michelle Macklem. Leila Goldstein was our producer in Cambodia and Halima Athumani recorded for us in Uganda. Hui Lin helped us with Chinese translation. Editing help from Justin Bergman and Ling Li.

• Rise of an industry: part 2 of Scam Factories
• Locked in: the inside story of Southeast Asia's fraud compounds