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Failed MFA Challenge

Low Open
ALR-00225 · 2026-05-24T03:41:42Z

Description

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

Alert Metadata

Alert ID
ALR-00225
Timestamp
2026-05-24T03:41:42Z
Severity
Low
Status
Open
Detection Source
Network IDS
Assigned Analyst
EmilyAI (auto)

Endpoint Information

Hostname
SRV-FILE-01
User Account
m.taylor
Source IP
103.61.216.50
Destination IP
10.3.89.13
Origin Country
VN Vietnam

MITRE ATT&CK Mapping

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

Investigation Timeline

03:41:42 Event ingested by SOC365 Engine
03:41:46 EmilyAI triage started — correlation enrichment
03:41:52 EmilyAI confidence: 79% — escalated to human analyst
03:42:09 Alert assigned to analyst: EmilyAI (auto)
03:42:47 Investigation started — querying SIEM and threat intelligence

Related Alerts

ID Time Alert Severity Status Host
ALR-00244 1h ago Suspicious PowerShell Execution Medium Investigating SRV-FILE-01
ALR-00362 3h ago Suspicious Scheduled Task Medium Resolved SRV-FILE-01
ALR-00200 4h ago Rogue DHCP Server Informational False Positive SRV-FILE-01
ALR-00367 19h ago Anomalous DNS Query Low Investigating SRV-FILE-01
ALR-00161 21h ago Brute Force SSH High Investigating SRV-FILE-01