Question: John Markoff, is a journalist best known for his work at "The New York Times", and a book and series of articles about the 1990s pursuit and capture of which American computer security consultant, author and hacker, best known for his high-profile 1995 arrest and later five years in prison for various computer and communications-related crimes?

<P0-S0> Elias Ladopoulos is a technologist and investor from New York City. <P0-S1>  Under the pseudonym Acid Phreak, he was a founder of the "Masters of Deception" (MOD) hacker group along with Phiber Optik (Mark Abene) and Scorpion (Paul Stira). <P0-S2>  Referred to as The Gang That Ruled Cyberspace in a 1995 non-fiction book, MOD was at the forefront of exploiting telephone systems to hack into the private networks of major corporations. <P0-S3>  In his later career, Ladopoulos developed new techniques for electronic trading and computerized projections of stocks and shares performance, as well as working as a security consultant for the defense department. <P0-S4>  He is currently CEO of Supermassive Corp, which is a hacker-based incubation studio for technology start-ups. <SEP> <P1-S0> Peter Claus Gutmann is a computer scientist in the Department of Computer Science at the University of Auckland, Auckland, New Zealand. <P1-S1>  He has a Ph.D. in computer science from the University of Auckland. <P1-S2>  His Ph.D. thesis and a book based on the thesis were about a cryptographic security architecture. <P1-S3>  He is interested in computer security issues, including security architecture, security usability (or more precisely the lack thereof), and hardware security, he has discovered assorted flaws in publicly released cryptosystems and protocols. <P1-S4>  He is the developer of the cryptlib open source software security library and contributed to PGP version 2. <P1-S5>  In 1994 he developed the Secure FileSystem (SFS). <P1-S6>  He is also known for his analysis of data deletion on electronic memory media, magnetic and otherwise, and devised the Gutmann method for erasing data from a hard drive more or less securely. <P1-S7>  Having lived in New Zealand for some time, he has written on such subjects as wetas, which are peculiar to New Zealand, and the Auckland power crisis of 1998, during which the electrical power system failed completely in the central city for five weeks. <P1-S8>  See, for instance, "Auckland: Your Y2K beta test site" on Gutmann's Homepage. <P1-S9>  He has also written on his career as an "arms courier" for New Zealand, detailing the difficulty faced in complying with customs control regulations with respect to cryptographic products, which were once classed as "munitions" by various jurisdictions including the United States. <SEP> <P2-S0> Kevin David Mitnick (born August 6, 1963) is an American computer security consultant, author and hacker, best known for his high-profile 1995 arrest and later five years in prison for various computer and communications-related crimes. <SEP> <P3-S0> John Markoff (born October 29, 1949) is a journalist best known for his work at "The New York Times", and a book and series of articles about the 1990s pursuit and capture of hacker Kevin Mitnick.