16. One or more tangible non-transitory computer-readable media as in claim 11 , further comprising: classifying a relevant pattern as said A-word by checking the presence of said each alpha string in said plurality of known password strings; classifying a relevant pattern as said R-word or said R-pattern by checking a repetition of said each alpha string in said plurality of known password strings, followed by checking the presence of the pattern of said each alpha string in said plurality of known password strings; classifying a relevant pattern as said M-word only if said relevant pattern is not classified as said A-word, said R-word, or said R-pattern; and classifying a relevant pattern as said A-pattern if said relevant pattern is not classified as said M-word.
16. One or more tangible non-transitory computer-readable media as in claim 11 , further comprising: classifying a relevant pattern as said A-word by checking the presence of said each alpha string in said plurality of known password strings; classifying a relevant pattern as said R-word or said R-pattern by checking a repetition of said each alpha string in said plurality of known password strings, followed by checking the presence of the pattern of said each alpha string in said plurality of known password strings; classifying a relevant pattern as said M-word only if said relevant pattern is not classified as said A-word, said R-word, or said R-pattern; and classifying a relevant pattern as said A-pattern if said relevant pattern is not classified as said M-word. 17. One or more tangible non-transitory computer-readable media as in claim 16 , further comprising: said step of classifying a relevant pattern as said M-word performed by detecting a lengthy substring that is a word in said plurality of known password strings; and identifying said lengthy substring as a first component within said relevant pattern by starting at a rightmost character of said targeted password and recursively calling said M-word classification on the remaining substring of said lengthy substring.