National Bank of Canada (Banque Nationale du Canada), the sixth largest commercial bank of Canada is currently experiencing a widespread service outage affecting its online banking and mobile app platforms.

Social media reports suggest that the issues began earlier this morning, with customers encountering a "maintenance" message when attempting to access their accounts via online banking on web and banking app.

Headquartered in Montreal, NBC (BNC) serves more than 2.4 million personal banking clients and employs over 30,000 staff across Canada.

National Bank customers experiencing widespread outage

Users visiting the National Bank's online banking website, app.bnc.ca, are being redirected to a "Maintenance in progress" placeholder page this morning:

In tests by BleepingComputer, the mobile app is also inaccessible as of earlier this morning:

At this time, it is unclear what caused the outage or when services will be fully restored.

Needless to say, the unavailability of digital banking services has left customers wondering: 

@nationalbank what's going on with your systems this morning?

— Jordyn (@jordynhewer) August 6, 2025

@nationalbank I am not able to open my account either through app or through website since last night. Need help here.

— Ankit Mehta (@Ankit_2905) August 6, 2025

BleepingComputer has approached the bank to learn about what is causing the outage. The bank is currently investigating the issue:

Due to a technical issue, our mobile and Internet banking solutions are currently unavailable. Our teams are working to restore the service as soon as possible. Thank you for your understanding.

— National Bank (@nationalbank) August 6, 2025

En raison d’un enjeu technique, nos solutions bancaires mobiles et par Internet sont présentement indisponibles. Nos équipes travaillent à résoudre la situation dans les meilleurs délais. Nous vous remercions de votre compréhension.

— Banque Nationale (@banquenationale) August 6, 2025

Update(s):

August 6th, 10:15 AM ET: Online banking services appear to be slowly coming back up with limited functionality available for logged in users:

"Due to a technical issue, our transactional services are temporarily unavailable. However, you can still view your account information as well as your most recent transactions."

BleepingComputer is still unable to view the most recent transactions screen, however, due to ongoing issues. Mobile app remains inaccessible.

August 6th, 11:00 AM ET: Both online banking and mobile app are now accessible. The outage appears to have lasted roughly three and a half hours.

BleepingComputer continues to await answers to our inquiry sent to National Bank.