L0phtCrack

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L0phtCrack
Developed by Peiter Zatko (Mudge), Chris Wysopal (Weld Pond), Christien Rioux (DilDog)
Latest release 5.04 / August 11, 2004 (2004-08-11); 1400 days ago
OS Microsoft Windows
Genre Password Cracking, Operating System Audit
License Shareware
Website Unofficial mirror

L0phtCrack is a password auditing and recovery application (now called LC5), originally produced by Mudge from L0pht Heavy Industries. It is used to test password strength and sometimes to recover lost Microsoft Windows passwords, by using dictionary, brute-force, and hybrid attacks. It was one of the crackers' tools of choice, although most use old versions because of its price and low availability.

The application was produced by @stake after the L0pht merged with @stake in 2000. @stake was acquired by Symantec in 2004. Symantec has since stopped selling this tool to new customers citing US Government export regulations, and has announced that they will discontinue support by the end of 2006. LC5 can still be found at SecTools.Org and other unofficial mirrors.

On March 8, 2006, sales of L0phtcrack were discontinued. Although the product is still available for download, most likely illegally, no updates, new versions, or additional software will be published and available.



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