Unauthorised USB Device
Informational
Resolved
ALR-00123 · 2026-05-25T22:00:39Z
Description
Unauthorised USB mass storage device connected to SRV-APP-01 by user 'e.evans'. Device blocked by Email Gateway endpoint policy.
Alert Metadata
Endpoint Information
MITRE ATT&CK Mapping
Investigation Timeline
22:00:39
Event ingested by SOC365 Engine
22:00:42
EmilyAI triage started — correlation enrichment
22:00:51
EmilyAI confidence: 85% — escalated to human analyst
22:01:07
Alert assigned to analyst: EmilyAI (auto)
22:03:19
Investigation started — querying SIEM and threat intelligence
22:09:21
Containment action taken — endpoint isolated
22:15:17
Alert resolved — remediation complete
Related Alerts
| ID | Time | Alert | Severity | Status | Host |
|---|---|---|---|---|---|
| ALR-00015 | 2h ago | Certificate Anomaly | Informational | Resolved | SRV-APP-01 |
| ALR-00336 | 10h ago | Unauthorised USB Device | Medium | Investigating | SRV-SQL-01 |
| ALR-00099 | 15h ago | Tor Exit Node Connection | Low | Open | SRV-APP-01 |
| ALR-00473 | 18h ago | Unauthorised USB Device | Low | Investigating | SRV-BACKUP-01 |
| ALR-00068 | 19h ago | Failed MFA Challenge | High | Investigating | SRV-APP-01 |