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Failed MFA Challenge

Medium Escalated
ALR-00056 · 2026-04-10T03:09:58Z

Description

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

Alert Metadata

Alert ID
ALR-00056
Timestamp
2026-04-10T03:09:58Z
Severity
Medium
Status
Escalated
Detection Source
EmilyAI Triage
Assigned Analyst
Marcus Webb

Endpoint Information

Hostname
AP-WIFI-03
User Account
d.walker
Source IP
45.185.148.99
Destination IP
10.3.85.155
Origin Country
NG Nigeria

MITRE ATT&CK Mapping

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

Investigation Timeline

03:09:58 Event ingested by SOC365 Engine
03:09:59 EmilyAI triage started — correlation enrichment
03:10:12 EmilyAI confidence: 88% — escalated to human analyst
03:10:24 Alert assigned to analyst: Marcus Webb
03:11:36 Investigation started — querying SIEM and threat intelligence
03:13:20 Containment action taken — endpoint isolated
03:29:28 Alert resolved — remediation complete

Related Alerts

ID Time Alert Severity Status Host
ALR-00155 3h ago Malware Signature Match Low Investigating AP-WIFI-03
ALR-00178 7h ago Failed MFA Challenge Low Open FW-EDGE-01
ALR-00147 1d ago Failed MFA Challenge Informational Open WS-PC-003
ALR-00030 1d ago Insider Threat Indicator Low Escalated AP-WIFI-03
ALR-00216 2d ago Failed MFA Challenge Informational False Positive WS-LAP-012