Loyd Blankenship (born 1965), better known by his pseudonym The Mentor, is an American computer hacker and writer. He has been active since the 1970s, when he was a member of the hacker groups Extasyy Elite and Legion of Doom.
He is the author of The Conscience of a Hacker (also known as The Hacker Manifesto); the essay was written after he was arrested and was published in the ezine Phrack. Since the essay's publication in 1986, it has been the subject of numerous panels and T-shirts.
Blankenship was hired by Steve Jackson Games in 1989. He authored the cyberpunk role-playing sourcebook GURPS Cyberpunk, the manuscript of which was seized in a 1990 raid of Steve Jackson Games headquarters by the U.S. Secret Service. The raid resulted in the subsequent legal case Steve Jackson Games, Inc. v. United States Secret Service.
- Sterling, Bruce (1991). The Hacker Crackdown: Law and Disorder on the Electronic Frontier. Bantam Books. pp. 74. ISBN 0-553-56370-X.
- The Mentor (1986). "The Conscience of a Hacker". Phrack. 1 (7): 3.
- Shannon Appelcline (2011). Designers & Dragons. Mongoose Publishing. p. 108. ISBN 978-1-907702-58-7.
- Sterling, Bruce (1991). The Hacker Crackdown: Law and Disorder on the Electronic Frontier. Bantam Books. pp. 122. ISBN 0-553-56370-X.
- Biocca, Frank; Levy, Mark R. (1995). Communication in the Age of Virtual Reality. Routledge. p. 353. ISBN 978-1-135-69357-2.