This article explains the difference between a strong and a weak password. It contains tips and examples to make a password stronger.
How to create a strong password?
Hackers and computer intruders use automated software to submit hundreds of guesses per minute to user accounts and attempt to gain access. These tools use lists of dictionary words to guess the password sequentially. Some tools add common symbols, numbers, or characters that can be added to the password to make it more complex.
Dictionary hacking tools that use an English dictionary list simply find words in that dictionary. If the simple word does not give access to an account, the tool changes the submission and tries other iterations of the same word.
For example, a dictionary hacking tool would try the following variations of the word Dog: