We use the latest technology to intervene when it matters. From biometrics in the CommBank app to advanced analytics that recognise patterns in your banking. We're continuously innovating to keep you and your accounts safe.
Whenever you transact with us online, you’re protected by strong encryption. Look for the padlock in your address bar. It shows your browser is securely connected to our systems.
Protecting your information and being clear about what it’s used for is a vital part of our relationship with you.
We offer a number of security devices to protect your card against fraud.
However, there are a number of steps you can take to make your card even more secure.
We have dedicated teams working 24/7 looking for suspicious transactions and activity across your accounts. If we detect anything, we'll contact you so please ensure your contact details are up-to-date.
Where we suspect activity or transactions may be unauthorised, we may then contact you to confirm whether the activity and transactions were undertaken by you. We may contact you using the below methods:
The voice-activated telephone or SMS alert can contact you within seconds of any potential fraudulent activity on your account.
If you receive a SMS from us asking you to confirm the transaction with a 'yes' or a 'no', simply respond:
How to protect yourself from scams
From strange looking emails and text messages, to suspicious phone calls.
Here's how to spot a scam and report it.
Control at your fingertips
Explore our range of features to help protect your money and keep you in control.
From locking or cancelling your card in seconds, to receiving alerts when your debit or credit card is charged.
Secure your business
We take the security of your business seriously. Learn the steps you and your staff can take to protect your business and stay safe online.
It is important to remember that if you don’t follow your terms and conditions, protect your cards or devices or make a reasonable attempt to disguise your codes such as PINs and passwords or prevent others from accessing them, you will be liable for any unauthorised transactions.
This information is a guideline only. Your liability for any losses arising from unauthorised transactions is determined in accordance with the ePayments code.
Whether your online habits involve shopping, banking or using social media, make sure you're doing so safely. We've created a short video outlining the simple ways you can protect yourself online, including tips for avoiding common scams.
We also have a CommBank online security specialist sharing some tips via a webinar series to help you feel confident with online safety and security. Learn more
Fraud is on the rise, and can happen to any business that accepts payments. Learn the steps that you and your employees can take to help protect your business from merchant fraud.
If you're worried about the security of your account or information, we can help:
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