Rafal Wojtczuk has over 15 years of experience with computer security. Specializing primarily in kernel and virtualization security, over the years he has disclosed many security vulnerabilities in popular operating system kernels and virtualization software. He is also well known for his articles on advanced exploitation techniques, including novel methods for exploiting buffer overflows in partially randomized address space environments. Recently he was researching advanced Intel security-related technologies, particularly TXT and VTd. He is also the author of libnids, a low-level packet reassembly library. He holds a master's degree in Computer Science from University of Warsaw.