If you can make hundreds of login attempts per second, and you can keep at it for days/weeks/years, you can get through some pretty big password dictionaries wi

If you can make hundreds of login attempts per second, and you can keep at it for days/weeks/years, you can get through some pretty big password dictionaries with lots of variants (e.g. password/p4ssword/passw0rd/p4ssw0rd/etc.).