Failed MFA Challenge
Medium
False Positive
ALR-00466 · 2026-05-22T04:10:26Z
Description
Multiple failed MFA challenges for user 'd.walker' — 12 push notifications in 3 minutes suggesting MFA fatigue attack. Endpoint Agent locked account.
Alert Metadata
Endpoint Information
MITRE ATT&CK Mapping
Investigation Timeline
04:10:26
Event ingested by SOC365 Engine
04:10:29
EmilyAI triage started — correlation enrichment
04:10:34
EmilyAI confidence: 94% — escalated to human analyst
04:10:56
Alert assigned to analyst: Marcus Webb
04:11:46
Investigation started — querying SIEM and threat intelligence
04:17:13
Containment action taken — endpoint isolated
04:25:16
Alert resolved — remediation complete
Related Alerts
| ID | Time | Alert | Severity | Status | Host |
|---|---|---|---|---|---|
| ALR-00029 | 25m ago | Brute Force SSH | Low | Escalated | SRV-FILE-01 |
| ALR-00278 | 14h ago | Failed MFA Challenge | Informational | Resolved | WS-PC-003 |
| ALR-00452 | 21h ago | Failed MFA Challenge | Low | Open | AP-WIFI-03 |
| ALR-00323 | 23h ago | Failed MFA Challenge | High | Investigating | SRV-SQL-01 |
| ALR-00455 | 1d ago | Shadow IT Discovery | Informational | Resolved | SRV-FILE-01 |