Cannabis has been a “hot ticket” tech and shows no signs of slowing. What happens when companies rush to first fill niches in the latest and greatest vertical? What do quickly hand-spun web applications and an ever-forward compulsion towards the “internet-of-crap” get you? Gaping security flaws. Add it's precarious federal legal status in this shaky political climate and you've got a complicated yet intriguing technical landscape hackers should find familiar. Through Puff Puff Hack we aim to bring the hacker ethos from the DEF CON floor to the world of cannabis (and vice versa) by making & breaking point-of-sale or medical software & grow-op hardware, milling over the security & accountability of vendors, considering questions of legal protections & intellectual property, and by taking a deep look at the science, tech, and history of weed.