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Unauthorised USB Device

Medium Escalated
ALR-00084 · 2026-07-06T09:54:07Z

Description

Unauthorised USB mass storage device connected to WS-PC-001 by user 'c.williams'. Device blocked by SOC365 Engine endpoint policy.

Alert Metadata

Alert ID
ALR-00084
Timestamp
2026-07-06T09:54:07Z
Severity
Medium
Status
Escalated
Detection Source
SOC365 Engine
Assigned Analyst
James Okonkwo

Endpoint Information

Hostname
WS-PC-001
User Account
c.williams
Source IP
45.153.148.107
Destination IP
10.1.118.67
Origin Country
DE Germany

MITRE ATT&CK Mapping

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

Investigation Timeline

09:54:07 Event ingested by SOC365 Engine
09:54:08 EmilyAI triage started — correlation enrichment
09:54:12 EmilyAI confidence: 92% — escalated to human analyst
09:54:33 Alert assigned to analyst: James Okonkwo
09:55:43 Investigation started — querying SIEM and threat intelligence
09:59:06 Containment action taken — endpoint isolated
10:05:45 Alert resolved — remediation complete

Related Alerts

ID Time Alert Severity Status Host
ALR-00465 1h ago Unauthorised USB Device Informational Escalated WS-PC-003
ALR-00115 11h ago Failed MFA Challenge Low Resolved WS-PC-001
ALR-00423 15h ago Unauthorised USB Device Medium False Positive SRV-BACKUP-01
ALR-00121 1d ago Malware Signature Match Low Escalated WS-PC-001
ALR-00331 1d ago Credential Stuffing Attempt Low Escalated WS-PC-001