Here is a list of most common passwords which are very easily hacked. Worldwide people tend to make the same mistake. The list goes as : 1. 123456 2. 12345 3. 123456789 4. Password 5. Iloveyou 6. Princess 7. Rockyou 8. 1234567 9. 12345678 10. abc123 The best passwords made are a nonlogical combination, that which cannot be guessed. Security experts suggest taking a sentence and transforming it into a non-existent word. For instance "This little piggy went to market" might become "tlpWENT2m". You should use a combination of words of upper and lower case with a special @, #, % symbols.