magnet:?xt=urn:btih:6b0c446541294d6b4ac0cfd6cdedf48e20034ad4&dn=defcon-talks&tr=udp%3A%2F%2Ftracker.opentrackr.org%3A1337%2Fannounce&tr=udp%3A%2F%2Fopen.tracker.cl%3A1337%2Fannounce&tr=udp%3A%2F%2Fopen.demonii.com%3A1337%2Fannounce&tr=udp%3A%2F%2Fopen.stealth.si%3A80%2Fannounce&tr=udp%3A%2F%2Ftracker.torrent.eu.org%3A451%2Fannounce&tr=udp%3A%2F%2Fexplodie.org%3A6969%2Fannounce

DEF CON recordings tend to take a while to appear. This one was supposedly recorded,[0] but I can't find it.

[0]: https://info.defcon.org/event/?id=54863

It was available live for a while. Defcon's video publishing kinda sucks.