How to Leak a 100-Million-Node Social Graph in Just One Week?

From a channel Lumen includes in full: Black Hat's briefings are peer-selected security research talks — exploitation, cryptography, hardware and cloud attacks — presented by the researchers who did the work, usually with full technical detail and disclosure timelines.

A 31-minute video from Black Hat's catalogue; the title names its topic.

Video by Black Hat, played through YouTube's embedded player.