Password weaknesses with LAN Manager

Password weaknesses with LAN Manager

I've heard there is a Windows NT server security issue involving LM hashes and passwords. Can you tell me more about this and how to fix it?

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LAN Manager (LM) hashes are an older and weaker method of storing/protecting Windows passwords. There's a further explanation here as well as in my Hacking For Dummies chapter on hacking passwords.

This was first published in January 2006

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