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Credential Stuffing Attempt

Medium Investigating
ALR-00165 · 2026-04-11T09:18:49Z

Description

Credential stuffing attack detected against VPN gateway. 234 unique username/password combinations attempted. Flagged by Email Gateway.

Alert Metadata

Alert ID
ALR-00165
Timestamp
2026-04-11T09:18:49Z
Severity
Medium
Status
Investigating
Detection Source
Email Gateway
Assigned Analyst
Sarah Chen

Endpoint Information

Hostname
AP-WIFI-03
User Account
l.johnson
Source IP
103.143.216.20
Destination IP
10.1.9.122
Origin Country
RO Romania

MITRE ATT&CK Mapping

Tactic
Credential Access
Technique
T1110.004
Reference
attack.mitre.org/techniques/T1110.004

Investigation Timeline

09:18:49 Event ingested by SOC365 Engine
09:18:52 EmilyAI triage started — correlation enrichment
09:18:58 EmilyAI confidence: 97% — escalated to human analyst
09:19:28 Alert assigned to analyst: Sarah Chen
09:20:19 Investigation started — querying SIEM and threat intelligence

Related Alerts

ID Time Alert Severity Status Host
ALR-00089 5h ago Credential Stuffing Attempt Low Open WS-PC-001
ALR-00347 5h ago Credential Stuffing Attempt Medium Escalated SRV-SQL-01
ALR-00336 13h ago DLP Policy Violation Medium Open AP-WIFI-03
ALR-00348 17h ago Credential Stuffing Attempt High Open VM-DEV-01
ALR-00236 17h ago Ransomware Behaviour Detected Low False Positive AP-WIFI-03