Mario Vilas is a security researcher living in Madrid, whose interests go from the low-level (exploiting, shellcoding) to the high-level (web application security, Python programming). He's the author of WinAppDbg (http://winappdbg.sourceforge.net) and coauthored GoLismero with Daniel Garcia (cr0hn).

He's currently working at Buguroo Offensive Security, and you can find him on Twitter at: http://twitter.com/Mario_Vilas