Unauthorised USB Device
Medium
Open
ALR-00218 · 2026-04-09T19:30:17Z
Description
Unauthorised USB mass storage device connected to FW-EDGE-01 by user 'e.evans'. Device blocked by Email Gateway endpoint policy.
Alert Metadata
Endpoint Information
MITRE ATT&CK Mapping
Investigation Timeline
19:30:17
Event ingested by SOC365 Engine
19:30:21
EmilyAI triage started — correlation enrichment
19:30:27
EmilyAI confidence: 96% — escalated to human analyst
19:30:37
Alert assigned to analyst: Marcus Webb
19:32:51
Investigation started — querying SIEM and threat intelligence
Related Alerts
| ID | Time | Alert | Severity | Status | Host |
|---|---|---|---|---|---|
| ALR-00228 | 34m ago | Insider Threat Indicator | Medium | Open | FW-EDGE-01 |
| ALR-00155 | 3h ago | Unauthorised USB Device | Medium | Resolved | WS-PC-004 |
| ALR-00391 | 11h ago | Failed MFA Challenge | Informational | Resolved | FW-EDGE-01 |
| ALR-00388 | 15h ago | DLP Policy Violation | Medium | Resolved | FW-EDGE-01 |
| ALR-00200 | 18h ago | Unauthorised USB Device | Informational | Escalated | SRV-DC-01 |