Mono incident
Degraded performance with authentication affecting multiple connections
Mono experienced a minor incident on May 21, 2026 affecting First Bank and Access Bank and 1 more component, lasting 18h 49m. The incident has been resolved; the full update timeline is below.
Affected components
Update timeline
- investigating May 21, 2026, 02:04 PM UTC
We are currently investigating an issue affecting account linking and authentication across multiple banks (including GTBank, Access Bank, Union Bank, Zenith Bank, First Bank, Globus Bank, Fidelity Bank, and Opay). As a result, some users may experience challenges when attempting to authenticate and link their accounts for financial data retrieval. This is due to an internal system issue, and our engineering team is actively working to resolve it as quickly as possible. We sincerely apologise for the inconvenience caused and will provide updates as soon as the service is fully restored.
- monitoring May 21, 2026, 03:16 PM UTC
A fix has been deployed for the issue affecting authentication across multiple banks. Services are now recovering, and our team is actively monitoring performance to ensure stability. We appreciate your patience while this was being addressed and will continue to provide updates as needed.
- resolved May 22, 2026, 08:54 AM UTC
The issue affecting authentication across multiple banks has now been resolved. Following continued monitoring, services have remained stable and account connection flows are functioning normally again. We sincerely apologise for the inconvenience caused and appreciate your patience throughout the incident.