Unauthorised USB Device
Medium
Resolved
ALR-00335 · 2026-07-08T03:31:33Z
Description
Unauthorised USB mass storage device connected to SRV-WEB-01 by user 'l.johnson'. Device blocked by Firewall endpoint policy.
Alert Metadata
Endpoint Information
MITRE ATT&CK Mapping
Investigation Timeline
03:31:33
Event ingested by SOC365 Engine
03:31:34
EmilyAI triage started — correlation enrichment
03:31:44
EmilyAI confidence: 98% — escalated to human analyst
03:32:08
Alert assigned to analyst: Emma Richardson
03:33:08
Investigation started — querying SIEM and threat intelligence
03:40:53
Containment action taken — endpoint isolated
03:41:49
Alert resolved — remediation complete
Related Alerts
| ID | Time | Alert | Severity | Status | Host |
|---|---|---|---|---|---|
| ALR-00421 | 1h ago | Unauthorised USB Device | High | Escalated | WS-PC-001 |
| ALR-00209 | 2h ago | Unauthorised USB Device | Medium | Investigating | SRV-SQL-01 |
| ALR-00272 | 2h ago | Certificate Anomaly | Informational | Investigating | SRV-WEB-01 |
| ALR-00286 | 12h ago | Unauthorised USB Device | Medium | Escalated | VM-DEV-01 |
| ALR-00450 | 23h ago | Unauthorised USB Device | Low | False Positive | SRV-FILE-01 |