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CommBank support / CommBank Safe / Password security

Creating and securing passwords

  • How to choose a safe password

    • Use a mix of letters, numbers and symbols
    • Use as many characters as you can - a longer password is harder to decipher
    • Avoid anything that can be easily guessed such as your address or birthday, or common quotes and phrases
    • Consider a passphrase: Similar to a password, but instead of creating a string of letters, numbers and symbols, use words that tell a story. For example: MyP3tGo@tL0v3sC@. It tells a silly story that’s easy to remember, while increasing the unpredictability of your password and making it difficult to guess.

  • Password security

    • Don't share your passwords with anyone 
    • Don’t write your passwords down anywhere
    • Make them unique – reusing a password multiple times makes it less secure, as it only requires one breach to compromise all the accounts with the same password
    • If you have many accounts, setting alphanumeric passwords for each can become a difficult exercise for your memory. In this instance, you may want to consider using passphrases instead
    • Wherever available, enable multi-factor authentication, which adds an additional check to prove your identity. An example might be a code you must enter which is accessed via an authenticator app on your mobile device.

How to change your password 

You can change your password in NetBank and the CommBank app

Learn more

Use NetBank on a desktop computer?

  • The 'Remember my client number' option can save you time when you want to log on from a desktop computer. It’s important to only use this feature on private computers that only you access – never use this feature on public or shared computers.

    You can opt out of the 'Remember client number' feature at any time by deselecting the option from the NetBank log on page. 

Building stronger passphrases

See the risks of short passwords using easily identifiable information and why you should create and use longer, stronger passphrases.

Building stronger passphrases

See the risks of short passwords using easily identifiable information and why you should create and use longer, stronger passphrases.

Suspicious activity on your account?

Message us immediately if you're worried about the security of your account. Our virtual assistant Ceba can help you lock your card or securely connect you to a specialist. 

How to message us

Get help

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Things you should know

  • As the advice on this website has been prepared without considering your objectives, financial situation or needs, you should, before acting on the advice, consider its appropriateness to your circumstances.