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Failed MFA Challenge

Informational Investigating
ALR-00492 · 2026-10-11T16:41:22Z

Description

Multiple failed MFA challenges for user 's.jones' — 12 push notifications in 3 minutes suggesting MFA fatigue attack. EmilyAI Triage locked account.

Alert Metadata

Alert ID
ALR-00492
Timestamp
2026-10-11T16:41:22Z
Severity
Informational
Status
Investigating
Detection Source
EmilyAI Triage
Assigned Analyst
EmilyAI (auto)

Endpoint Information

Hostname
FW-EDGE-01
User Account
s.jones
Source IP
185.50.220.104
Destination IP
10.3.16.228
Origin Country
FR France

MITRE ATT&CK Mapping

Tactic
Credential Access
Technique
T1621
Reference
attack.mitre.org/techniques/T1621

Investigation Timeline

16:41:22 Event ingested by SOC365 Engine
16:41:26 EmilyAI triage started — correlation enrichment
16:41:30 EmilyAI confidence: 78% — escalated to human analyst
16:41:43 Alert assigned to analyst: EmilyAI (auto)
16:43:12 Investigation started — querying SIEM and threat intelligence

Related Alerts

ID Time Alert Severity Status Host
ALR-00347 1h ago Failed MFA Challenge Informational Open WS-LAP-011
ALR-00188 7h ago Failed MFA Challenge Low Investigating SRV-BACKUP-01
ALR-00073 18h ago Ransomware Behaviour Detected Medium False Positive FW-EDGE-01
ALR-00350 19h ago Phishing Email Blocked High Escalated FW-EDGE-01
ALR-00267 22h ago Failed MFA Challenge Medium Escalated SRV-MAIL-01