NAB Internet Banking Restored After Major Outage on September 23

National Australia Bank (NAB) customers regained access to internet banking, mobile apps, and phone services on September 23 after a major outage lasting over three hours. The disruption affected NAB Internet Banking, the NAB Mobile App, NAB Connect, NAB Trade, NAB Broker, and JBWere wealth management. No planned maintenance was scheduled, and the bank did not explain the cause. Customers reported being unable to pay for groceries and access savings accounts during the incident.

What services went down and when

The outage struck in mid-afternoon on September 23 and lasted over three hours. It knocked out internet banking, the mobile app, NAB Connect for business customers, NAB Trade, NAB Broker, and JBWere wealth management. Phone customer service also became unreachable. NAB confirmed widespread disruption across multiple digital channels. By Wednesday evening, the bank said most services had been restored, though some business customers continued to experience login issues via NAB Connect.

How long NAB has been down this year

NAB ranks third among Australia’s big four banks for outages. According to research by Primara Research and Airteam, NAB and its ubank brand recorded 831 minutes of outage time in the past year, trailing only Commonwealth Bank of Australia with 1,058 minutes. ANZ had the lowest downtime at 295 minutes, while Westpac recorded 696 minutes. The September 23 outage alone exceeded NAB’s entire last quarter figure of 66 minutes. In September 2024, NAB suffered a far worse outage of 965 minutes.

Why a single failure took down multiple services

Airteam’s Executive Director of Technology Rich Atkinson flagged a critical design flaw. When internet banking, the mobile app, and NAB Connect all fail simultaneously, it points to a shared underlying dependency rather than isolated channel failures. Systems built to survive such failures isolate each channel so one fault does not cascade into six. This architecture makes securing and mitigating impact much more difficult for the bank.

What the stock data shows

NAB shares fell 1.19% to A$38.15 on the day of the outage. Meyka rates the stock a C+ with a sell recommendation, citing weak profitability metrics. The RSI sits at 47.90, indicating no overbought or oversold condition. The 12-month price forecast stands at A$43.83, suggesting limited upside from current levels. With a PE ratio of 19.37 and dividend yield of 4.40%, the stock offers income but faces valuation headwinds.

Final Thoughts

NAB’s three-hour outage exposed shared infrastructure vulnerabilities that left millions unable to access banking services. With 831 minutes of downtime in the past year and Meyka grading the stock a C+, investors should monitor whether the bank invests in resilience improvements.

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The content shared by Meyka AI PTY LTD is solely for research and informational purposes.  Meyka is not a financial advisory service, and the information provided should not be considered investment or trading advice.