16. An improved password validation system comprising: (a) means for accessing a data base of bad passwords, wherein each said bad password is comprised of one or more characters; (b) means for computing a frequency of occurrence of said bad password characters; (c) means for computing a probability of occurrence T, within said bad passwords, of the bad password characters using the computed frequency of occurrence; (d) means for inputting a validation password to the system, wherein said validation password is comprised of one or more characters; and (e) comparitor means for comparing said validation password characters with the probability of occurrence T of the bad password characters.
17. An improved password validation system according to claim 16, further comprising (i) means for computing a first set of log likelihood functions 11f.sub.1 for the bad password characters using the computed probability of occurrence T; (ii) means for computing a mean .mu. and standard deviation .sigma. for said first set of log likelihood functions 11f.sub.1 ; and (iii) means for computing a second set of log likelihood functions 11f.sub.2 for the validation password characters using the computed probability of occurrence T; wherein the comparitor means utilizes the mean .mu. and the standard deviation .sigma. to represent the probability of occurrence T of the bad password characters, and the second set of log likelihood functions 11f.sub.2 to represent the validation password characters.