Securing your Commonwealth Bank savings accounts

Managing account security and card protection options

Olesya Krasavtseva
Fact-checked by Olesya Krasavtseva
Content Editor at Prostobank Consulting Prostobank Consulting Logo
Updated: 01.09.2026
Table of Contents

If you are concerned about the security of your savings or believe your account access has been compromised, you may be looking for a way to "lock" your account. It is worth noting that while you can instantly lock your debit card through the CommBank app, savings accounts themselves do not typically feature a "lock" button that freezes all inbound and outbound funds.

Instead, Commonwealth Bank provides several security layers to protect your money. If you suspect unauthorized activity, the most effective response is to secure your digital access credentials, lock any linked debit cards, and contact the bank immediately to place a security flag on your accounts.

Account and Card Security Information

Category Details
Security Methods CommBank app, NetBank, and phone support
Processing Time Real-time for card locking; immediate for password resets
Eligibility All Commonwealth Bank personal account holders
Key Requirements Active NetBank or app login credentials

You can lock an interest rate for term deposits in the bank.

Commonwealth Bank offers term deposits for periods from 3 to 60 months.

The interest rate is paid at maturity or annually.

You can deposit from 5,000 to 1 999 999 AUD.

 

Frequently Asked Questions

Can I freeze my savings account to stop all money from leaving?

There is no specific button to "freeze" a savings account to block all types of transfers, such as BSB and account number payments or recurring direct debits. If you suspect your account is compromised, the best approach is to call the bank’s security team directly. They can place a security hold on the account, which is a more robust measure than a simple user-initiated lock, as it prevents all forms of unauthorized access.

Does locking my debit card stop money from being moved out of my savings?

Locking your debit card stops card-based transactions (like online shopping or in-store purchases) that pull money from your linked accounts. However, it does not stop transfers initiated through NetBank or BPay. If you are worried about funds being moved via your online banking profile, changing your password and checking for any unauthorized linked payees are more effective steps than just locking the card.

What should I do if I see a transaction I don't recognize?

If you see a transaction that you did not authorize, log in to your account and contact the bank immediately to report it as fraud. The system logic is designed to investigate disputed transactions, but you need to act quickly to minimize potential loss. Do not wait for the transaction to clear; reporting it immediately allows the security team to investigate the merchant and potentially reverse the funds.

Official Bank Information

Commonwealth Bank (CBA)

Support: 13 22 21

SWIFT Code: CTBAAU2S

Video Guides

Watch our expert video reviews to navigate Australian banking with ease.

Bank's Services and Products

Find and compare the best banking products tailored to your financial goals.

Personal Banking

Personal credit cards

Show details
Credit limit range: 400 dol to 1500 dol No physical card provided (digital only) Monthly minimum repayments: 40 dol or less Access to CommBank Yello Cashback Offers No additional cardholders allowed Does not earn Awards points

Personal debit cards

Show details
Applicant must be at least 18 years old Must have an Australian residential address Must hold an existing linked standard Debit Mastercard to upgrade Must be linked to an eligible CommBank transaction account Includes complimentary international travel insurance for trips up to 21 days (requires activation) Includes two complimentary airport lounge passes worldwide via Mastercard Travel Pass Features Price Guarantee, Purchase Security, and Extended Warranty insurances

Personal savings accounts

Show details
Must be 14 years or older to apply Requires a linked eligible CommBank transaction account Introductory bonus rate of 4,95% p.a. applies for the first 5 months

Personal transaction accounts

Show details
Must be 14 years or older Requires identity verification at a branch within 20 days if applying from overseas Includes physical and digital Debit Mastercard Eligible for CommBank Yello rewards with 5+ transactions monthly Access to digital tools like Bill Sense and Spend Tracker

Loans & Mortgages

Personal Car loans

Show details
No vehicle security or collateral is required Offers complete flexibility to make unlimited extra repayments without any fee Includes a redraw facility to access available funds if needed

Personal Home Loans

Show details
Discount margins vary based on Loan to Value Ratio (LVR) tiers up to 95% Freedom to split the loan and utilize multiple Everyday Offset accounts Interest Only payments available for up to 5 years (Owner Occupied) or 15 years (Investment) Minimum topup amount is 10000 AUD Variable rate is not protected from interest rate increases

Personal loans

Show details
No security or collateral required Includes a redraw facility to access extra funds paid into the loan Discounted rates available for eligible energyefficient purchases Repayments may fluctuate if the interest rate changes Repayment frequencies available: weekly, fortnightly, or monthly

Business Solutions

Business accounts

Show details
Must have an Australian Business Number (ABN) or Australian Company Number (ACN)Applicant must be at least 18 years oldRequires an existing eligible Commonwealth Bank AUD accountAccount must be used strictly for business purposesInterest is paid monthly on selected currencies based on balance tiersOnline application available for sole traders, Pty Ltd companies, SMSFs, and partnerships

Business car loans

Show details
Must have a current ABN and a minimum of 12 months trading history The financed vehicle or equipment serves as the loan security Optional balloon payments available to reduce ongoing monthly commitments Repayments can be customized to align with seasonal business cashflows Discount of up to 1,00% p.a. available for eligible green and efficient vehicles

Business credit cards

Show details
Up to 55 days interestfree period on purchases Minimum unsecured credit limit of 500 AUD, maximum up to 50000 AUD Includes Transit Accident Insurance and Unauthorised Transaction Insurance Access to personalized CommBank Yello Cashback Offers Features 24/7 emergency overseas assistance

Business loans

Show details
Must have a current ABN and a minimum of 12 months trading history The financed vehicle or equipment serves as the loan security Optional balloon payments available to reduce ongoing monthly commitments Repayments can be customized to align with seasonal business cashflows

Business savings

Show details
Allows early withdrawal of up to 20% of the balance without penalty fees or interest adjustmentsRequires a CommBank business transaction account in the same business nameMust have an Australian Business Number (ABN)

Find bank, branch or ATM

Locate the nearest financial services, interactive maps, and contact details across Australia.