Unauthorised USB Device
High
Open
ALR-00223 · 2026-04-07T09:56:31Z
Description
Unauthorised USB mass storage device connected to SRV-DC-01 by user 'm.taylor'. Device blocked by Email Gateway endpoint policy.
Alert Metadata
Endpoint Information
MITRE ATT&CK Mapping
Investigation Timeline
09:56:31
Event ingested by SOC365 Engine
09:56:36
EmilyAI triage started — correlation enrichment
09:56:37
EmilyAI confidence: 82% — escalated to human analyst
09:56:46
Alert assigned to analyst: Anika Patel
09:57:51
Investigation started — querying SIEM and threat intelligence
Related Alerts
| ID | Time | Alert | Severity | Status | Host |
|---|---|---|---|---|---|
| ALR-00174 | 27m ago | Unauthorised USB Device | Low | Resolved | WS-PC-006 |
| ALR-00275 | 3h ago | Unauthorised USB Device | Medium | Investigating | SRV-FILE-01 |
| ALR-00137 | 6h ago | Unauthorised USB Device | Informational | Open | WS-PC-002 |
| ALR-00205 | 7h ago | Privilege Escalation Attempt | High | Open | SRV-DC-01 |
| ALR-00240 | 8h ago | Unauthorised USB Device | Low | False Positive | WS-MAC-005 |