An anonymous reader points out The Register's report that Wi-Fi security expert Cédric 'Sid' Blancher has died as the result of a skydiving accident
. "Among other things, the 37-year-old Blancher was a sought-after speaker on WiFi security, and in 2005 published a Python-based WiFi traffic injection tool called Wifitap. In 2006, while working for the EADS Corporate Research centre, he also put together a paper on how to exploit Skype to act as a botnet." Some of Blancher's skydiving videos are posted to Vimeo
; clearly, it's something he was passionate about.