Unauthorised USB Device
Medium
Escalated
ALR-00458 · 2026-04-10T05:53:02Z
Description
Unauthorised USB mass storage device connected to SRV-FILE-01 by user 'f.hall'. Device blocked by Cloud Connector endpoint policy.
Alert Metadata
Endpoint Information
MITRE ATT&CK Mapping
Investigation Timeline
05:53:02
Event ingested by SOC365 Engine
05:53:04
EmilyAI triage started — correlation enrichment
05:53:08
EmilyAI confidence: 97% — escalated to human analyst
05:53:33
Alert assigned to analyst: Sarah Chen
05:55:54
Investigation started — querying SIEM and threat intelligence
06:01:56
Containment action taken — endpoint isolated
06:03:15
Alert resolved — remediation complete
Related Alerts
| ID | Time | Alert | Severity | Status | Host |
|---|---|---|---|---|---|
| ALR-00364 | 57m ago | Suspicious PowerShell Execution | Low | False Positive | SRV-FILE-01 |
| ALR-00222 | 3h ago | Data Exfiltration Attempt | Informational | Investigating | SRV-FILE-01 |
| ALR-00226 | 4h ago | Suspicious Scheduled Task | High | Investigating | SRV-FILE-01 |
| ALR-00288 | 7h ago | Port Scan Detected | Informational | Escalated | SRV-FILE-01 |
| ALR-00047 | 14h ago | Unauthorised USB Device | Low | Resolved | WS-LAP-011 |