Help & support
Keeping your business safe is our priority. We provide a range of products and security features to help you bank securely.
Remember three simple steps: Stop. Check. Reject.
If you're concerned you might have been scammed or are worried about the security of your accounts, call 13 1998.
Our systems monitor for unusual activity. We may get in touch if we detect something suspicious on your accounts, so keep your contact details up-to-date. We also encourage you to monitor your transactions.
With the latest machine learning, our new 'protect, detect, and resolve' approach is designed to identify irregularities and scammers and shut down activity not authorised by you or your team.
Our app notifications offer security alerts about transactions that appear suspicious. Download the CommBank app to enable this security feature.
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.
In an Australian banking first, NameCheck prompts you if the account details on a first-time, non-bulk payment don’t look right. This can help protect from business email compromise scams and mistaken payments.
CallerCheck allows you to verify whether a caller claiming to be from CommBank is legitimate, by triggering a security message in your CommBank app.
We may need to identify you before assisting with certain transactions in-branch. We may use CustomerCheck, which sends a message to your CommBank app, or other identification methods. This helps ensure we’re speaking with the right person and helps protect you from fraud.
Cybercriminals may try and scam your business through email, text messages, phone calls and social media. They will often pretend to be a person or organisation you trust. CommBank will never ask you to transfer funds, share your screen or reveal your passwords.
Learn about the main types of scams your staff need to be able to recognise to protect your business.
Cybercriminals may try and scam your business through email, text messages, phone calls and social media. They will often pretend to be a person or organisation you trust. CommBank will never ask you to transfer funds, share your screen or reveal your passwords.
Learn about the main types of scams your staff need to be able to recognise to protect your business.
Whether you’re small, medium or large, every business needs cyber protection.
Watch now for ten simple tips to help keep your accounts and information CommBank Safe from cyber compromise, data theft and email scams.
Whether you’re small, medium or large, every business needs cyber protection.
Watch now for ten simple tips to help keep your accounts and information CommBank Safe from cyber compromise, data theft and email scams.
Developed in partnership with the Council of Small Business Organisations Australia and Telstra, the Cyber Wardens program supports and educates small businesses to build cyber resilience.
Take payments from customers? Here's what you need to do to keep transactions and your customers safe.
CommBiz protects your business’ finances with state-of-the-art security features so you can bank online with confidence.
For more easy-to-digest information and explainers to help you protect your business, visit CommBank Signals.
Collaboration is our best defence against scammers
A recent drop in scam losses shows that ecosystem-wide anti-scam initiatives are having an impact. By stepping up cross-sector collaboration, Australia can become increasingly challenging for scammers to operate in.
When bank impersonators go phishing
Bank impersonators used fraudulent SMS and phone calls to scam $20 million from Australians in 2022. Micro, small and medium-sized businesses were a favourite target.
If you're worried you've been scammed or noticed a suspicious transaction, call us on 13 1998. CommBiz customer? Call 13 2339.
Has someone from CommBank contacted you? Here's how to find out if it's legitimate.
As this advice has been prepared without considering your objectives, financial situation or needs, you should, before acting on this advice, consider its appropriateness to your circumstances. Terms and conditions issued by Commonwealth Bank of Australia for CommBiz. View our Financial Services Guide. If you have a complaint, the Bank's dispute resolution process can be accessed on 13 2221.
