Underworld investigator Misha Glenny: “There are two types of companies in the world: those that know they’ve been hacked and those that don’t.” Photo: James Duncan Davidson / TED

Cybersecurity expert Mikko Hypponen advocates for an “Internetpol” — an Interpol for the net. He says: “In the vast majority of online attacks, we don’t even know which continent they’re coming from.” Photo: James Duncan Davidson / TED

The extraordinary Eddi Reader sings the haunting “Semiprecious” as a theme for Session 6: The Dark Side. Photo: James Duncan Davidson / TED

“Everyone lies,” says lie detector Pamela Meyer. “Lying is an attempt to bridge our wishes for what we want to be with what we really are.” Photo: James Duncan Davidson / TED

Ben Goldacre launches in on the misrepresentation of science and the “536,731 ways the evidence can be distorted.” He says: “We can’t make decisions based on lack of information.” Photo: James Duncan Davidson / TED

Anti-torture activist Karen Tse: “We think of torture as a political tool, but 95% is for people who live in broken down political systems.” Photo: James Duncan Davidson / TED