Our commitment to you 

24/7 real-time monitoring

Our dedicated teams work around the clock looking for suspicious transactions and activity across your accounts. We'll get in touch with you if we detect anything, so please ensure your business contact details are up-to-date

Latest AI technology

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. 

Two-way push notifications

Our app notifications offer security alerts about transactions that appear suspicious. Download the CommBank app to enable this security feature.  

100% security guarantee

Our 100% security guarantee protects you from unauthorised transactions on personal and business accounts when you take the necessary steps to stay safe online.

Learn how to spot email scams

Here's what to look out for:
  • The request claims to be urgent and/or confidential
  • You're asked to ignore standard payment authorisation processes
  • Emails or addresses look legitimate as often attackers will spoof (imitate) an email address or compromise an email account

Learn more about business email scams

More ways to keep your business safe

Image of a terminal

EFTPOS & merchant terminal security

Take payments from customers? Here's what you need to do to keep transactions and your customers safe. 

Man and woman discussing work

Teach your staff how to spot a scam

Learn the main types of scams targeting businesses and tips to protect your staff and customers. 

Woman looking at laptop

Advanced security with CommBiz

  • CommBiz Security Guarantee with NetLock
  • Login and payment protection with two-factor authentication
  • Customise user controls, access and permissions
  • Audit user activity using built in reports and capabilities



Think you might have been scammed?

If you're worried you've been scammed or noticed a suspicious transaction, get in touch. For NetBank customers, call us on 13 2221. For CommBiz customers, call us on 13 2339.

Has someone from CommBank contacted you? Here's how to find out if it's legitimate. 

Latest cyber security articles

For more easy-to-digest information and explainers to help you protect your business, visit CommBank Signals.

Protecting your business from the growth in cyber-threats

With global geopolitical turmoil driving an upsurge in cyber security risks, experts say you need a combination of strong culture, hardened technology and well-developed processes to protect your organisation.

Man working from home

How to keep your business secure in the age of remote working

Staff working from home? Here are some tips to ensure your team's devices, connections and tools are up to scratch.

Keep your personal banking secure

Things you should know

  • 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.