DEF CON 31 - Infinite Money Glitch - Hacking Transit Cards - Bertocchi, Campbell, Gibson

Who likes paying to ride the subway? Sure, you could hop the fare gates, but that can be athletically challenging and simply isn’t cool enough for our tastes. What’s a mischievous and miserly rider to do, then? Hack the fare system of course!

In this talk we'll walk you through how we, four high school students and cybersecurity noobs became the first to fully reverse engineer Boston’s CharlieCard fare system and earn ourselves free rides for life… or at least …

con course def def con def con 31 glitch hack hacking isn money subway system