Help & support
The CommBank app and NetBank have a range of security features to keep you in control. You can:
Explore Lock, Block, Limit for credit cards and Lock, Block, Alert for debit cards.
Turn Transaction Notifications on and we'll instantly alert you when a transaction is made on your CommBank debit or credit card. It's also important to regularly check your transaction history in NetBank or the CommBank app.
If you spot anything unusual, contact us.
For an added layer of security, register for NetCode so we can send you an SMS or push notification with a time-sensitive password, when you need to complete certain transactions. It’s an extra step to ensure you’re in control of what’s happening with your account.
Review your transfer, BPAY and International money transfer limits, to make sure they are suitable for your needs. If you don’t need to make any large transfers or payments, consider reducing them.
If you need to be paid by someone you don’t know, consider using Pay ID. Once registered, you can receive payments without needing to share personal information such as your BSB or account details.
We have advanced security and fraud detection systems in place, monitoring your account 24/7. If we notice any suspicious activity on your account, we’ll contact you.
Update your details now
Debit & credit card security
Security tips for using your credit or debit card when paying in-store, shopping online and travelling.
Password security
Setting a strong, unique password and changing it regularly is key to keeping your accounts safe.
How to create secure passwords
How to spot a hoax or scam
From strange looking emails and text messages, to suspicious phone calls.
Protect yourself from scams
Public Wi-Fi isn’t always safe and may enable cybercriminals to access your information. If you need to use public Wi-Fi, avoid online banking or online shopping when using networks you aren’t familiar with. Also switch off ‘auto-connects’, so you’re always in control of your Wi-Fi connections.
Think twice before sharing sensitive personal information on your social media accounts. Hackers and cybercriminals often look to social media for personal information that can be used to aid identity theft and fraud. Ensure you aren’t sharing personal data online, including your address, birthdate, family information and even pet names.
And remember to use different passwords for each of your accounts, change them regularly and enable two-factor authentication.
Ensure you have the right level of protection for your laptop and computers. Anti-virus software protects against viruses, spyware, malware, phishing attacks, spam attacks and other online cyber threats. Keep your anti-virus software up-to-date and check regularly that it still meets your needs.
To help you understand some of the ways you can protect yourself online, we’ve arranged for a CommBank online security professional to provide you with some tips via an online seminar.
The seminars were recorded, you can watch the videos:
Webinar 1: Protecting yourself from scams
Webinar 2: How to shop safely online
Webinar 3: Becoming cyber savvy
Visit Be Connected to access a free online course that teaches you how to perform common banking tasks securely from home.
If you're worried about the security of your account or information, we can help:
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.
Ceba can help you lock your card or securely connect you to a specialist in the CommBank app.
Fast-track your call, see expected wait times and connect with a specialist in the CommBank app.
Send us a copy or screenshot if you receive a hoax email or SMS.
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. View our Financial Services Guide. Terms and Conditions for these products and services are available online or from any branch of the Commonwealth Bank. The Terms and Conditions should be considered before making any decision about these products.
