Dave Kleiman

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Dave Kleiman
Born 1967
Died April 26, 2013
Palm Beach Gardens, Florida
Occupation Forensic computer investigator
Website http://www.davekleiman.com/

Dave Kleiman (1967 – April 26, 2013)[1] was a noted forensic computer investigator, an author/coauthor of multiple books and a noted speaker at security related events.[2][3][4] Kleiman's estate alleges that he was involved in the creation of bitcoin.[5]


Kleiman was adopted by Louis and Regina Kleiman of Palm Beach Gardens.[6] In 1986, he became a helicopter technician in the U.S. Army and served for four years. For a number of years in the 1990s, Kleiman was a sworn law enforcement officer for the Palm Beach County Sheriff's Office (PBSO).[3][4] While there, he attained the rank of detective. Also, while at the PBSO, he worked as a System Security Analyst in the Computer Crimes Division and also helped set up the Computer Forensics Lab.[3][4] A motorcycle accident in 1995 left Kleiman disabled, requiring the use of a wheelchair.[6] He continued to work at the Sheriff's Office for some time before becoming a freelance worker in computer security and forensics. In 2012, he founded Computer Forensics, LLC with a friend. Suffering from sores, Kleiman died in his home in April 2013 seemingly of natural causes related to complications from a MRSA infection.[7][1]

Computer security & forensics[edit]

Dave Kleiman was a regular contributor to a wide array of online forums and mailing lists where he assisted network engineers and other IT professionals of varying levels in solving their issues, regardless of the level of difficulty involved. Kleiman was also well known as an advisor to engineering professionals in numerous industries.[2][3][4]

Dave also regularly volunteered his time and expertise assisting local and federal law enforcement agencies in cases both domestic and international in scope.

He was the creator of the "one-shot server lockdown utility" S-lok for Microsoft Windows servers.[3][4]

On January 1, 2007 he was named a Microsoft MVP for Windows – Security.

Bitcoin involvement[edit]

The estate of Dave Kleimann has alleged that Kleiman was one of the early bitcoin pioneers and worked with Craig Steven Wright on its establishment as a cryptocurrency. The estate also alleges that on January 12, 2009, Kleiman, Wright and two other people performed a recorded bitcoin transaction.[5]

In 2011 Kleiman founded W&K Info Defense Research LLC (“W&K”) in Florida as a company to mine bitcoins.[5]

On December 2015 Gizmodo reported that Dave Kleiman may have been involved in the invention of bitcoin based on information uncovered in several leaked documents.[7]

In May 2016, The Economist article had Craig Steven Wright claiming he (under the pseudonym of Satoshi Nakamoto) and Dave Kleiman were behind the invention of bitcoin.[8]

In February 2018, a brother of Dave initiated a lawsuit in the U.S. District Court for the Southern District of Florida on behalf of the Kleiman estate against Wright over the rights to more than $5,118,266,427.50 worth of bitcoin, claiming Wright defrauded the estate of bitcoins and intellectual property rights.[5][9]The lawsuit claims that between 2008 and 2013 Kleiman and Wright mined over a million bitcoins.[5] According to Craig Wright, Kleiman lost money due to US government seizing of Costa Rica-based Bitcoin exchange called Liberty Reserve leading to Kleiman's poverty.[10]


  • Co-author: Microsoft Log Parser Toolkit; Syngress Publishing; ISBN 1-932266-52-6
  • Co-author: Security Log Management: Identifying Patterns in the Chaos; Syngress Publishing; ISBN 1-59749-042-3
  • Technical editor: Perfect Passwords: Selection, Protection and Authentication; Syngress Publishing; ISBN 1-59749-041-5
  • Technical editor: Winternals Defragmentation, Recovery, and Administration Field Guide; Syngress Publishing; ISBN 1-59749-079-2
  • CD and DVD Forensics: Technical Editor, ISBN 1-59749-128-4
  • How to Cheat at Windows System Administration: Contributing Author, ISBN 1-59749-105-5
  • Enemy at the Water Cooler: Real Life Stories of Insider Threats, Technical Reviewer, ISBN 1-59749-129-2
  • Rootkits for Dummies: Technical editor, ISBN 978-0-471-91710-6
  • Windows Forensic Analysis Including DVD Toolkit: Technical Editor, ISBN 1-59749-156-X
  • The Official CHFI Study Guide (Exam 312-49): Co-Author, ISBN 1-59749-197-7


  1. ^ a b "Obituary: Former PBSO deputy dies in his home". Palm Beach Post. Archived from the original on August 31, 2013. Retrieved May 1, 2013. (Subscription required (help)). 
  2. ^ a b "SANS WhatWorks Summit in Forensics and Incident Response". SANS. Archived from the original on 2010-01-26. 
  3. ^ a b c d e "Dave Kleiman". CredenceCorp. [permanent dead link]
  4. ^ a b c d e "Dave Kleiman". O'Reilly. Archived from the original on 2009-02-19. 
  5. ^ a b c d e Russell Brandon (February 26, 2018). "Self-proclaimed Satoshi Craig Wright is being sued for stealing his partner's bitcoin". The Verge. Archived from the original on February 26, 2018. Retrieved February 27, 2018. 
  6. ^ a b Andy Cush (December 15, 2015). "The Strange Life and Death of Dave Kleiman, A Computer Genius Linked to Bitcoin's Origins". Gizmodo. Archived from the original on August 10, 2017. Retrieved February 27, 2018. 
  7. ^ a b Sam Biddle; Andy Cush (2 May 2016). "This Australian Says He and His Dead Friend Invented Bitcoin". Gizmodo. Gawker Media. Archived from the original on 8 December 2015. 
  8. ^ "Craig Steven Wright claims to be Satoshi Nakamoto. Is he?". The Economist. 2 May 2016. Archived from the original on 2 May 2016. 
  9. ^ Ryan Browne (February 27, 2018). "Self-proclaimed bitcoin creator sued for allegedly stealing $5 billion worth of crypto, other assets". CNBC. Archived from the original on February 27, 2018. Retrieved February 27, 2018. 
  10. ^ Metro, Friday 6 Apr 2018 12:28 pm

External links[edit]