In my previous post, I spoke about all of the different DEFCON villages where attendees can learn about and purchase all sorts of fun hacking/counter hacking tools. Even so, I covered only a small fraction of the activities at the conference. For example, attendees have the opportunity to participate in a lot of contests run over the weekend, including various capture the flags events. One, in particular, caught my eye because I wrote a post about this a few years ago; it was called “Hospital Under Siege.” In this contest, security professionals are tasked with locating and rooting out the bad guys who have taken over various medical devices in a simulated hospital in order to disrupt patient care. Such contests are extremely relevant today considering that hospitals continue to be an easy target for hackers.