Nubank down this Wednesday (08/06): outage affects millions of users

On the morning of August 6, 2025, the Nubank app, one of Brazil’s largest digital banks, experienced an outage, preventing thousands of users from accessing accounts, making Pix transactions, or paying bills. The issue, which began around 8 a.m., sparked complaints on social media, with users reporting connection errors and login difficulties. The fintech, serving over 100 million customers, confirmed the problem and stated it is working to restore services. The outage occurs amid high demand for digital transactions, raising questions about the robustness of banking systems. It particularly affected users relying on the app for urgent payments, such as bills and daily purchases.

The situation caused widespread frustration, with reports of failed access attempts across various regions of the country. Users shared screenshots of error messages like “Unable to load information. Check your connection and try again.” Although the issue was intermittent, the lack of an initial resolution timeline fueled complaints. Nubank, known for its agility and customer focus, now faces the challenge of restoring user trust.

• Immediate impact: Thousands of users without access to financial services.
• Social media reactions: Customers expressed dissatisfaction with memes and reports.
• Initial response: Nubank confirmed the issue and promised a quick fix.

User reactions and social media impact

The Nubank app outage quickly gained traction on social media, with hashtags like #NubankDown trending in Brazil. Users shared experiences of struggling to complete essential transactions, such as paying bills and making transfers. One customer reported being unable to finalize a purchase at a supermarket due to the app error, while another highlighted the impossibility of paying a bill due on the same day.

Reactions on social media were mixed, with criticism over the initial lack of communication and praise for the fintech’s transparency after the official statement. Nubank used its official channels to inform users that the technical team was mobilized, but the absence of a fixed resolution timeline caused dissatisfaction.

• Error messages: Users reported issues like “connection unavailable.”
• Complaint volume: Hundreds of posts on X between 8 a.m. and 12 p.m.
• Memes and humor: Customers used social media to mock the situation.
• Affected regions: Issues reported in SP, RJ, MG, and other states.

The incident reignited debates about reliance on digital services in Brazil, especially in a context where traditional banks also face similar issues. Nubank’s popularity, with its largely young customer base, amplified the backlash.

Nubank’s history of outages

Nubank has faced similar issues in the past, though on a smaller scale. In October 2022, the app was down for a few hours due to routine updates, with services gradually restored. In January 2025, another outage affected login and transactions but was resolved in under three hours. These events, while rare, raise questions about the scalability of the fintech’s technological infrastructure.

Unlike previous incidents, the August 6 outage appears to have been more widespread, impacting a larger number of users. Experts suggest that the exponential growth of Nubank’s customer base, surpassing 100 million in late 2024, may be straining its servers. The fintech, operating entirely in the digital realm, relies on a robust infrastructure to meet high demand.

• October 2022: Outage caused by routine updates.
• January 2025: Login issues resolved in a few hours.
• Customer growth: Over 100 million clients in 2024.
• Digital demand: Increased Pix transactions strain systems.

The company has invested heavily in technology in recent years, but today’s incident highlights the need for continuous upgrades to handle access volume.

Nubank’s response and measures taken

Around 11 a.m., Nubank issued an official statement confirming that the outage was caused by a technical failure in its servers. The company reported that its technical team had identified the issue and was working on a full restoration of services. While no exact timeline was provided, the fintech assured users that operations were being gradually normalized.

Customers were advised to try accessing the app at regular intervals or use alternative channels, such as internet banking via the official website. Nubank also made its customer service hotline available for inquiries, though high call volumes led to longer-than-usual wait times.

• Official statement: Released at 11 a.m. on official channels.
• Identified cause: Server failure at the fintech.
• Alternative channels: Website and customer service as options.
• Gradual normalization: Some users already regaining access.

The company’s swift response is a strength, but the lack of detail about the failure’s exact cause sparked speculation. Experts suggest the issue may stem from system overload, possibly linked to increased transactions at the start of the month.

Comparison with other financial institutions

Digital and traditional banks are not immune to outages. In June 2025, Banco do Brasil faced similar issues, with failures in its app and Pix services. Other fintechs, like Inter and C6 Bank, also reported incidents in recent months, though on a smaller scale. Nubank’s case, however, garners more attention due to its popularity and the profile of its customers, who rely almost exclusively on the app.

The growing digitization of Brazil’s financial sector demands that institutions invest in redundancy and scalability. Nubank, known for its innovation, faces the challenge of maintaining stability while expanding services, such as the recent launch of NuCel and the expansion of payroll loans.

• Banco do Brasil: Outage in June 2025 affected Pix and app.
• Other fintechs: Inter and C6 with minor issues in 2025.
• Nubank’s challenge: Balancing innovation and technical stability.

The comparison with competitors underscores the importance of robust systems in a highly competitive market.

Guidance for affected customers

To minimize disruptions, Nubank suggested practical steps while the system is not fully restored. Users were advised to check their internet connection, update the app to the latest version, and try accessing it during lower-traffic periods. The fintech also recommended using the official website for urgent transactions.

Customers facing tight deadlines, such as bill payments, were advised to seek alternatives, like ATMs from other banks for withdrawals or TED transfers through partner institutions. Nubank assured that no additional fees would be charged for operations during the outage period.

• Check connection: Test Wi-Fi or mobile data.
• Update app: Download the latest version of the app.
• Use the website: Access internet banking as an alternative.
• No fees: Nubank waives charges during the outage.
• Customer service: Available for support, despite longer wait times.

The fintech also stated that pending transactions, such as scheduled Pix payments, will be processed automatically once the system is fully restored, with no loss to customers.

Digital financial market landscape

The incident comes at a time when Brazil’s digital financial market faces intense competition. Nubank, now the third-largest bank in the country by customer base, competes with giants like Itaú and Bradesco, as well as other fintechs. User trust in digital services is critical to maintaining leadership, and outages like today’s can affect public perception.

In recent years, Nubank has expanded internationally, with operations in Mexico and Colombia, and launched new products, such as NuCel and partnerships with companies like OXXO. These advancements, while positive, increase the complexity of its technological infrastructure.

• Fierce competition: Traditional banks and fintechs vie for market share.
• Global expansion: Nubank grows in Mexico and Colombia.
• New products: NuCel and payroll loans expand portfolio.
• Infrastructure: Need for continuous tech investments.

The case highlights the importance of scalable systems to meet the growing demand for digital services in Brazil.