Passwords are a way to justify that a person trying to access a certain account, is the owner of that account. So, websites reason that if you can give them the correct username and its corresponding password, you must be the owner of the account - thus, you will be given complete access. Can you see how this can be potentially dangerous?
Think of a password like the key to your house. If someone can manage to get his hands on your keys, then he can unlock your front door and enter your house. Once inside, he can break your belongings, or worse - steal them!
The secrecy of passwords is what protects your privacy. So, never ever reveal your passwords, and be sure to have a password that would be difficult to guess.
The passwords you choose should be really difficult to guess. Therefore, avoid the use of the following when choosing a password:
There is a little known trick to "building" a password yourself. Start by taking a random sentence. Then take the first letter of every word, and use this as your password. To make things a little more interesting, add your own "twists"; use a mixture of uppercase and lowercase letters, symbols and numbers.
The more complex passwords are, the harder they are to guess. Include the following things in all your passwords to make them harder to guess:
A password containing all of these traits, will take a normal computer (like the one you are working on) about 600 year to guess your password randomly. So go ahead and make a new "complex" password for yourself. When you are done, use the tool below to see how complex your password is.
Your password should at least score a complexity level of 50% or more. If your password does not score higher than that... you may need to use the earlier discussed topics to create a new, more complex password.