Failed MFA Challenge

Informational Escalated

ALR-00225 · 2026-07-05T22:09:32Z

Description

Multiple failed MFA challenges for user 'l.johnson' — 12 push notifications in 3 minutes suggesting MFA fatigue attack. Cloud Connector locked account.

Alert Metadata

Alert ID: ALR-00225
Timestamp: 2026-07-05T22:09:32Z
Severity: Informational
Status: Escalated
Detection Source: Cloud Connector
Assigned Analyst: EmilyAI (auto)

Endpoint Information

Hostname: WS-PC-002
User Account: l.johnson
Source IP: 45.254.148.174
Destination IP: 10.1.53.2
Origin Country: UA Ukraine

MITRE ATT&CK Mapping

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

Investigation Timeline

22:09:32 Event ingested by SOC365 Engine

22:09:35 EmilyAI triage started — correlation enrichment

22:09:41 EmilyAI confidence: 81% — escalated to human analyst

22:10:17 Alert assigned to analyst: EmilyAI (auto)

22:10:45 Investigation started — querying SIEM and threat intelligence

22:13:22 Containment action taken — endpoint isolated

22:28:52 Alert resolved — remediation complete

Related Alerts

ID	Time	Alert	Severity	Status	Host
ALR-00095	3h ago	Failed MFA Challenge	Low	Escalated	WS-PC-006
ALR-00249	8h ago	Privilege Escalation Attempt	Medium	Resolved	WS-PC-002
ALR-00181	11h ago	Credential Stuffing Attempt	Informational	Escalated	WS-PC-002
ALR-00140	1d ago	DecoyPulse Honeypot Triggered	Low	Open	WS-PC-002
ALR-00217	1d ago	Failed MFA Challenge	Medium	Investigating	SRV-BACKUP-01