Downrightnow
// Incident Post-MortemDRN-510B5AA8

Duo Security outage on May 18, 2026

Minor severityResolved1h 53mSecurity
Started · UTC
May 18, 06:37 PM
45d ago
Resolved · UTC
May 18, 08:30 PM
45d ago
Duration
1h 53m
End-to-end
Peak confidence
45.00
0 snapshots
// User impact

Duo Security users likely saw failed connections, degraded availability, or session instability for this Security service. The incident reached Minor severity and lasted 1h 53m. The stored report window does not show a preserved user-report spike.

// What happened

May 18, 14:37 EDTInvestigating - We are currently investigating an issue with AI Assistant not functioning on all US deployments and are working to correct the issue as soon as possible.Please check back here or subscribe to updates for any changes.

Deterministic readout · awaiting AI summary pass

// Timeline
  1. Incident detected

    Minor confidence crossed the incident threshold for Duo Security: all US Deployments: AI Assistant failures.

  2. Marked resolved

    The incident was closed after 1h 53m of observed impact.

// Signals by source0 sources

No per-source signal payloads were preserved in this incident's snapshot window.

// Aggregate evidence

Confidence scoring

45.00

The incident reached 45.00 peak confidence across available stored status snapshots.

User reports

0 / 15m

No elevated user-report volume was preserved in the incident window snapshots.

Status samples

0 affected

The incident row exists, but the bounded snapshot window does not include affected status samples.

Recovery signal

Resolved

Recovery was recorded at Mon, May 18, 2026, 08:30 PM UTC.