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Sextortion was invented by one woman in the Philippines, Maria Caparas. She turned the idea of making friends online and video chats into a clever, evil scam that would not exist without social media.

They may look like ordinary posts of exotic pets for sale on social media. But they are feeding a rising illegal wildlife trade in Malaysia, part of a global wildlife crime worth billions.

Drugs, guns, counterfeit documents are sold on dark web marketplaces that run on anonymous browsers and cryptocurrency. AlphaBay was the biggest marketplace, transacting over US$800,000 in a day.

It was one of 640 million closed groups on Facebook. Hiding behind the anonymity, the creator of child pornography group Loli Candy and its 7,000 members hid their activities on Facebook and WhatsApp.