39. A system for generating a pronounceable security password according to claim 37, wherein said second threshold transition number is different than said first threshold transition number.
37. A system for generating a pronounceable security password according to claim 35, further comprising: means for storing a second threshold transition number; means for identifying one of said stored first word segment portions corresponding to one or more characters at an end portion of said first pronounceable word segment; means for retrieving a second one of said stored second word segment portions from the set of stored second word segment portions associated with said corresponding first word segment portion, wherein selection of any one of said stored second word segment portions within said associated set of stored second word segment portions is of substantially equal probability; and means for combining said first pronounceable word segment with said second selected second word segment portion to form a part of the password; wherein said generated pronounceable security password includes said second selected second word segment portion only if consecutive characters of said part of the password fail to correspond to those of said first word segment portions within said plurality of first word segment portions having a transition number less than the stored second threshold transition number.