Nitesh Dhanjani is a well-known information security researcher and speaker. Dhanjani is the author of, "Hacking: The Next Generation" (O'Reilly), "Network Security Tools: Writing, Hacking, and Modifying Security Tools" (O'Reilly), and "HackNotes: Linux and Unix Security" (Osborne McGraw-Hill). He is also a contributing author to, "Hacking Exposed 4" (Osborne McGraw-Hill) and "HackNotes: Network Security" (Osborne McGraw-Hill).