Peiter C. Zatko (better known as Mudge) was a member of the high profile hacker think tank, the L0pht.

Born in December 1970, Mudge graduated from the Berklee College of Music and is an adept guitar player.

Mudge was responsible for early research of a security vulnerability known as a buffer overflow. In 1995, he published one of the first papers on the topic, "How to Write Buffer Overflows". He published several security advisories on vulnerabilities in Unix and was a leader in the full disclosure movement. He was the initial author of security tools L0phtCrack, AntiSniff, and l0phtwatch.

Mudge was one of the first people from the hacker community to reach out and build relationships with government and industry. In demand as a public speaker, he spoke at hacker conferences such as Defcon and academic conferences such as Usenix. Mudge has also been a member of CULT OF THE DEAD COW since 1996.

He was one of the seven L0pht members who testified before a Senate committee in 1998 that they could bring down the Internet in 30 minutes. When L0pht was acquired by @stake in 1999, he became the vice president of research and development and later chief scientist.

In 2000, after the first crippling internet distributed denial of service attacks, he was invited to meet with President Clinton at a security summit alongside cabinet members and industry executives.

After leaving @stake in 2002 he disappeared from the infosecurity scene for a few years before resurfacing as a technical advisor to "insider threat" company, Intrusic .

In 2004, he became a division scientist at government contractor BBN Technologies , where he originally worked in the 1990s, and also joined the technical advisory board of NFR Security .

On August 11, 2007 he married Sarah Lieberman, a co-worker at BBN.

External links

Usenix talk (MP3)


  • Source: "Security Scene Errata".
  • Source: "NNDB Entry for Mudge".
  • Source: "How to Write Buffer Overflows".
  • Source: "DEF CON V Archives".
  • Source: "An Interview with Mudge".
  • Source: "CULT OF THE DEAD COW || Team Bio".
  • Source: "The L0pht, renowned 'hacker think-tank,' to join @stake".
  • Source: "Clinton fights hackers, with a hacker".
  • Source: "The Demise of @Stake?".
  • Source: "Intrusic: Intrusic Team".
  • Source: "Hacker 'Mudge' Returns to BBN".
  • Source: "NFR Security Adds Leading Security Industry Experts to Technology Advisory Board".

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