Protecting you is our priority

As scams and fraud continue to rise, we’re more committed than ever to protect your accounts.


In an Australian banking first, NameCheck will prompt you if the account details on a first-time payment don’t look right. This can help protect you from business email compromise scams and mistaken payments.


Received a call from us? CallerCheck allows you to verify whether a caller claiming to be from CommBank is legitimate, by triggering a security notification in your CommBank app.


CustomerCheck allows CommBank staff to securely identify you when you visit a branch or meet with a specialist. They'll send a notification to your CommBank app to confirm they're dealing with the right person.

In addition, we accept over the counter deposits into personal accounts from CommBank customers only.

Monitoring of fraud and scams

Our systems will monitor for unusual activity. We may be in touch with you if we detect something suspicious across your accounts, so make sure your contact details are up-to-date. We also encourage you to monitor your transactions. 

In-app security

We may notify you if we notice irregular transactions or logins on your account. Ensure you activate location-based security and review your registered devices. Turn on your notifications in the CommBank app to receive alerts.

Protection for unauthorised transactions

We’ll protect you from losses due to unauthorised transactions on personal and business accounts when you take the necessary steps to stay safe online.

Remember 3 simple steps: Stop. Check. Reject. 

    1. Stop
      Does a call, email or text seem off? The best thing to do is stop. Take a breath. 
      Real organisations won’t put you under pressure to act instantly.

    2. Check
      Ask someone you trust or contact the organisation the message claims to be from.

    3. Reject
      If you’re unsure, hang up on the caller, delete the email, block the phone number. 
      Change your passwords.

Staying safe from scams and fraud 

Knowing what to look for can help keep you safe. 

How to spot a scam

Scammers gain your confidence in order to steal your money or information. Find out about the types of scams and how to spot a scam.

More about scams

How to spot fraud

Account fraud usually happens when somebody accesses your funds without your knowledge or authority. Learn more about the types of fraud and how to protect yourself.

More about fraud

Tips to keep you CommBank Safe

Our CommBank Safe video series shares some of our top tips on how you can stay one step ahead of the latest cyber threats, scams and fraud.

Sometimes we may reach out to confirm your details

  • There may be a time when we will reach out to you to confirm information on your account or your identity.

    Having accurate and up-to-date details is part of our ‘Know Your Customer (KYC) requirements. It also helps us protect you from fraud, as we can contact you immediately if we detect any suspicious activity.

    If you’re ever concerned whether the person you’re speaking to is legitimately from CommBank, you can use the CallerCheck feature in the CommBank app to verify your caller’s identity.

    Regardless of whether the caller has been identified, we will never ask you to transfer funds, share your screen or reveal your passwords.

Scam & cyber security protection for your business

Latest news 

CommBank and Telstra join forces

Scam Indicator is designed to detect certain high-risk scam situations in real-time to help protect joint CommBank and Telstra customers. Developed in partnership with Quantium Telstra, it allows us to check if the customer is on a phone call when transferring large amounts of money – the prime indicator that a scam is occurring – so we can try and contact you or put in additional security checks.

To protect privacy, we‘ll only be able to access specific data points relating to scam prevention, and we won’t have access to any other underlying customer data.

Podcast: Anatomy of a Scam

Hear the inner workings of prevalent scams shared by cyber security experts, law enforcement officers and warnings from scam victims themselves. In collaboration with Nine Entertainment, we've produced an eight-part podcast, hosted by journalist Deborah Knight.

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