unico Status Page

Aug 10, 2026 · resolved Aug 10

Executive Summary and Impact Around 5:08 PM, an automated alert detected an availability drop in the facial recognition service (1:N flow), triggering the incident. The issue escalated quickly and began affecting the behavior alerting service and, subsequently, the process creation flow, due to cascading timeouts between these services. The impact affected a subset of clients using these capabilities. The situation was reported as stabilized at 5:22 PM, with metrics returning to normal levels. Root Cause and Resolution The root cause was a traffic spike generated by an internal workload, which sent a high volume of facial recognition requests directly into the biometric pipeline, bypassing the edge layer used by normal client traffic. This additional volume saturated the capacity of the database supporting the facial recognition service. The saturation caused timeouts in that service, which cascaded to the biometric engine orchestration service, then to the behavior alerting service, and finally to the process creation flow using these capabilities. To resolve the issue, the team stopped the workload responsible for the spike and increased the capacity of the affected database. These actions mitigated the problem, with error volume returning to near-zero levels. Commitment and Next Steps A follow-up item was opened to implement rate limiting for the type of internal workload that caused the spike, as a preventive measure against recurrence. The capacity increase for the affected database was already carried out during the incident itself.

Jul 31, 2026 · resolved Jul 31

Prezados clientes, Informamos que o incidente relacionado à exibição de envios no painel de acompanhamento foi oficialmente encerrado. Após a aplicação da correção e o período de monitoramento, confirmamos que a listagem e o histórico de documentos foram totalmente restabelecidos, e a plataforma opera em completa estabilidade. Agradecemos pela compreensão e paciência de todos durante o processo. Atenciosamente,

Jul 29, 2026 · resolved Jul 29

**Summary** On July 29, 2026, between 8:32 AM and 10:05 AM \(Brasília time\), the webhook delivery service was degraded for approximately 1 hour and 33 minutes. The incident was caused by a planned infrastructure migration that created a transient incompatibility state: after internal routes were switched to the new cluster, the webhook service began generating authentication tokens from the new cluster, but deliveries were still being directed to the old cluster — which rejected the tokens with an authorization error. Lost events were reprocessed on demand. **Impact** Multiple products were affected simultaneously — including authentication, payments, and onboarding flows. Users of clients that relied exclusively on webhook notifications to continue their business flows experienced operational interruptions during the period. Clients that had implemented active polling as a fallback mechanism experienced reduced impact. **Root Cause** The root cause was identified in the migration planning: the procedure did not map the chained dependency of the webhook flow — where the internal route creates an asynchronous task that, in turn, calls the public route for delivery. By migrating the internal routes and the public routes in separate steps, an incompatibility window was created where tokens generated by the new cluster were rejected by the old cluster's authorization policy, which specifically validated the previous service account identifier. This scenario was not identified during the change's risk assessment, and none of the existing service quality indicators covered the asynchronous delivery layer where the failure materialized. **Resolution** The team identified the token incompatibility as the source of the failures and completed the migration of the public routes to the new cluster, eliminating the divergence. From that point on, the pending deliveries in the queue began processing normally. The impact ceased at 10:05 AM, and traffic on the old cluster reached zero at 10:32 AM. **Lessons Learned** The incident showed that migrations involving chained asynchronous delivery flows require all routes participating in the chain — internal and public — to be migrated in a coordinated manner, without incompatibility windows between clusters. The gradual approach used, while suitable for most migrations, created a prolonged failure period here that could have been avoided with an atomic transition or a much shorter transition window. Additionally, the lack of observability at the asynchronous delivery layer was the reason the incident was not detected internally — existing indicators measured only event acceptance, not actual delivery. Creating dedicated alerts for failures and backlog at this layer is the most urgent monitoring improvement identified.

Jul 24, 2026 · resolved Jul 24

**Summary** On July 24, 2026, between 6:05 PM and 6:29 PM \(Brasília time\), the webhook creation and delivery service was unavailable for approximately 24 minutes. The incident was caused by the loss of access to an infrastructure service account during a resource decommissioning process linked to a cluster migration carried out days earlier. The affected account was shared by multiple services without this dependency being documented, causing the webhook service to lose its authentication capability and stop creating and delivering events. **Impact** Webhook event creation and delivery was interrupted during the period, affecting 18 client users with more than 1,550 errors recorded. The impact cascaded to other services that depended on the same authentication flow, causing simultaneous degradation across different platform capabilities. **Root Cause** The root cause was identified in the service dependency configuration. This cross-service dependency was neither documented nor visible in any dependency mapping. When the decommissioning process removed the account as part of the original service's resource cleanup, there was no automated validation to check whether the account was still being used by other active services. The absence of this safeguard kept the dependency hidden until its removal caused widespread authentication failures. **Resolution** The team quickly identified the unstable service account as the source of the authentication failures. The account was manually adjusted and applied to the cluster, restoring the service at 6:29 PM. The total impact duration was approximately 24 minutes. **Lessons Learned** The incident exposed the risks of legacy configurations that create hidden dependencies between services: a single resource change during planned maintenance was enough to disrupt multiple services simultaneously. The infrastructure resource decommissioning process must include automated dependency validation before any change.

Jul 21, 2026 · resolved Jul 21

**Summary** On July 21, 2026, between 12:44 PM and 1:43 PM \(Brasília time\), page load performance indicators for the reduced journey degraded severely, with average load time jumping from ~4.8s to ~8.9s and the p95 reaching 31.5 seconds. The incident was caused by rate limiting applied by the cloud infrastructure on connections originating from the provider, which prevented frontend assets from loading. **Impact** Users from 32 clients experienced extremely slow page loads or complete loading failures, with approximately 94 journey errors recorded. "Initialization Timeout" errors — triggered when the application fails to mount within 30 seconds — reached about 23 thousand occurrences during the period. **Root Cause** The root cause was identified in the infrastructure's network layer: the CDN provider consolidates traffic through a limited set of outbound IP addresses. A spike in new TCP connections and TLS handshakes originating from these IPs triggered the cloud infrastructure's automatic network-layer defense mechanisms, which began rate-limiting connections even before HTTP processing. Because these failures occurred at the network layer — before HTTP processing — they did not appear in standard request logs, making the problem invisible to conventional monitoring and significantly complicating diagnosis. **Resolution** The impact ceased with the natural recovery of the rate limiting applied by the cloud infrastructure. The deactivation of a component, initially flagged as a possible cause, coincided temporally with the recovery but was later confirmed to be unrelated to the incident. Configuration fixes — enabling HTTP Keep-Alive with an extended timeout and adding an allow rule for CDN IPs at the edge protection layer — were identified as follow-up items by the support teams of the providers involved. **Lessons Learned** The incident highlighted that failures at the network layer between the CDN and cloud infrastructure are invisible to standard application monitoring, creating a significant blind spot. As follow-up items, the team identified the need to implement the configuration fixes recommended by the providers and to expand observability at the asset delivery layer to proactively detect this type of degradation.

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