A password has to be something you can easily remember, but something other users cannot easily guess. As a general rule, passwords should be “complex,” which means they should be at least eight characters long and should use both letters (upper- and lowercase) and numbers. The names of your kids, pets, phone numbers, and other commonly known items should not be used as your password. Often, it is best to combine a couple of common items, such as your favorite pet, food, or automobile with some random numbers that you can remember.
Here are some examples of good passwords: