!!! Overview [{$pagename}] [LM Hash] LAN Manager (LM) hashes are derived from the user password. Legacy support for LM hashes and the LAN Manager authentication protocol remains in the [NTLM protocol suite|NTLM SSP]. Default configurations in Windows and [Microsoft] security guidance have discouraged its use. %%warning The security of [{$pagename}] has been __severely__ compromised and is considered [Cryptographically Weak] and lacks [Collision Resistance]. %% [{$pagename}] (LM hashes) inherently are more vulnerable to attacks because: * LM hashes require a password to be less than 15 characters long and they contain only [ASCII] characters. * LM hashes do not differentiate between uppercase and lowercase letters. !! More Information There might be more information for this subject on one of the following: [{ReferringPagesPlugin before='*' after='\n' }] ---- * [#1] - [NT_LAN_Manager|Wikipedia:NT_LAN_Manager/|target='_blank'] - based on information obtained 2016-06-12-