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Unauthorised USB Device

Low Resolved
ALR-00309 · 2026-07-08T14:47:09Z

Description

Unauthorised USB mass storage device connected to WS-PC-002 by user 'c.williams'. Device blocked by Firewall endpoint policy.

Alert Metadata

Alert ID
ALR-00309
Timestamp
2026-07-08T14:47:09Z
Severity
Low
Status
Resolved
Detection Source
Firewall
Assigned Analyst
EmilyAI (auto)

Endpoint Information

Hostname
WS-PC-002
User Account
c.williams
Source IP
194.207.62.105
Destination IP
10.2.131.208
Origin Country
US United States

MITRE ATT&CK Mapping

Tactic
Initial Access
Technique
T1091
Reference
attack.mitre.org/techniques/T1091

Investigation Timeline

14:47:09 Event ingested by SOC365 Engine
14:47:10 EmilyAI triage started — correlation enrichment
14:47:22 EmilyAI confidence: 94% — escalated to human analyst
14:47:33 Alert assigned to analyst: EmilyAI (auto)
14:48:08 Investigation started — querying SIEM and threat intelligence
14:53:15 Containment action taken — endpoint isolated
14:57:36 Alert resolved — remediation complete

Related Alerts

ID Time Alert Severity Status Host
ALR-00219 4h ago Unauthorised USB Device Medium Investigating SW-CORE-01
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-00020 13h ago Unauthorised USB Device Low Escalated WS-LAP-012
ALR-00371 14h ago Unauthorised USB Device Low Investigating WS-LAP-012