From Financial Consumer Agency of Canada
Many people regularly need a Personal Identification Number (PIN) or password, for example to access their computer, use a bank machine or make an online purchase. PINs are a type of password using only numbers as opposed to a regular password which can contain number, letters and often special characters. If someone guesses or steals your PIN or password, that person will be able to steal your identity and use it to commit financial fraud. You can prevent this by choosing "strong" passwords – that is, passwords that are hard to guess.
Do:
Don't:
Here are two methods you can use to create strong passwords:
Create a new password for yourself. Check to make sure it's strong.