Daily: DARPA CTF: Mayhem (win), Xandra (place), Mechphish (show). Blame it on Rio.

In today’s podcast we hear about Bifinex’s recovery from its recent heist and the possibly temporary haircut its depositors got. We also follow the related Ethereum hard fork. News on Olympic hacks and risks of hacking from Booz Allen Hamilton's Brad Medairy and Grey Burkhart. Trustwave reports home smart thermostat bugs. Checkpoint discloses Qualcomm Android Quadrooter firmware vulnerabilities. More signs that Fancy Bear was prancing through the DNC. A look back at Black Hat, and notes on DARPA’s AI capture-the-flag challenge. Jonathan Katz explains the Etherium fork. Learn more about your ad choices. Visit megaphone.fm/adchoices