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Failed MFA Challenge

Medium Investigating
ALR-00048 · 2026-04-07T18:33:44Z

Description

Multiple failed MFA challenges for user 'r.davies' — 12 push notifications in 3 minutes suggesting MFA fatigue attack. Network IDS locked account.

Alert Metadata

Alert ID
ALR-00048
Timestamp
2026-04-07T18:33:44Z
Severity
Medium
Status
Investigating
Detection Source
Network IDS
Assigned Analyst
Anika Patel

Endpoint Information

Hostname
WS-PC-002
User Account
r.davies
Source IP
194.203.62.81
Destination IP
10.3.21.62
Origin Country
IN India

MITRE ATT&CK Mapping

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

Investigation Timeline

18:33:44 Event ingested by SOC365 Engine
18:33:48 EmilyAI triage started — correlation enrichment
18:33:53 EmilyAI confidence: 94% — escalated to human analyst
18:34:10 Alert assigned to analyst: Anika Patel
18:36:12 Investigation started — querying SIEM and threat intelligence

Related Alerts

ID Time Alert Severity Status Host
ALR-00139 3m ago Privilege Escalation Attempt Informational Open WS-PC-002
ALR-00227 2h ago Port Scan Detected High Open WS-PC-002
ALR-00286 4h ago Failed MFA Challenge Low Open SRV-WEB-01
ALR-00357 14h ago Failed MFA Challenge Medium Resolved WS-MAC-005
ALR-00298 1d ago Data Exfiltration Attempt Informational Open WS-PC-002