Cool! I found the usernames interesting as well, since not many studies have been done on them. "dragon" is both a common username and password! In reply to ano

Cool! I found the usernames interesting as well, since not many studies have been done on them. "dragon" is both a common username and password! In reply to another child post: the enormous number of "michael" passwords probably has to do with the smaller, but still large, number of "michael" usernames. I'd run some more commands, to find out how many "michael"s use "michael" as their password, but I've got to head out now. Would be interesting -- anybody up for it? (Ooh -- you could even juxtapose the usernames against common American names by decade [1], and probably derive some data about the ages of these users as well!) (Furthermore -- what if we started keeping track of most common passwords by decade? That could be super interesting! I wonder if it's changed much!) $ export LC_ALL='C' $ 0-million-combos.txt | tr 'A-Z' 'a-z' | sort | uniq -c | sort -nr | head -n 20 3044 infouniq -c | sort -nr | head -n 20 2119 admin 1323 michael 1113 robert 1095 2000 1049 john 1041 david 967 null 940 richard 922 thomas 901 chris 866 mike 843 steve 832 dave 816 daniel 812 andrew 797 george 765 james 735 mark 730 dragon 1. http://www.ssa.gov/oact/babynames/decades/names1980s.html http://www.ssa.gov/oact/babynames/decades/names1980s.html