that all hands on deck assumes those companies have hackers' interests at heart - they do not. those types or corporate devs are discovery gatherings used to gather intel on hackers to be used against them legally or as blackmail. if you get mined during an event - and your exposed as someone a group or government has been looking for - even an underground affiliate, not just a legal one - you're fucked. conferences in general are discovery gatherings. i would avoid them completely. i have been saying this for years - and a few people who didn't listen ended up barely returning/compromised. if you think stock sales of individuals on the conference circuit is awful - wait until you see what you get into once your public image is doxxed and a bounty on your head while in international territory...