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Google Cloud IoT Core Device Key

Service Name: Google Cloud IoT Core

Service Description: Google Cloud IoT Core is a fully managed service that allows you to easily and securely connect, manage, and ingest data from millions of globally dispersed devices. It provides a complete solution for collecting, processing, analyzing, and visualizing IoT data in real time.

Service Address: https://cloud.google.com/iot/docs

Validation Type: API Auth

IP Allow list: IP restrictions can be configured at the project level using VPC Service Controls and firewall rules.

Secret Access Scope: Grants authentication and access for IoT devices to connect to Google Cloud IoT Core, allowing devices to publish telemetry data and receive configuration updates.

Secret Revokement URL: https://cloud.google.com/iot/docs/how-tos/devices#delete-device

Secret Example:

-----BEGIN PRIVATE KEY-----
MIIEvQIBADANBgkqhkiG9w0BAQEFAASCBKcwggSjAgEAAoIBAQC+Z2mi8shZ9h0e
ekj1bq+P8bRfwIZ5pXYW9ULgezGJUXEJYT4l4hYYgCEEYHKJt7KxPXHgEgXHhCFCg
-----END PRIVATE KEY-----

Suspicious Activity Investigation Instructions:

  • Review Cloud Audit Logs for unusual device authentication or data publishing patterns
  • Check for unexpected device registrations or modifications in the IoT Core registry
  • Monitor for unusual data transmission volumes or frequencies from devices
  • Examine device state changes and configuration updates
  • Review network traffic patterns for IoT devices connecting to Google Cloud
  • Check for geographic anomalies in device connections

Mitigation Instructions:

  • Navigate to the Google Cloud Console and open the IoT Core section
  • Locate the affected device in the device registry
  • Delete the compromised device credentials by selecting the device and clicking Delete credentials
  • Generate new device credentials if the device is still needed
  • Consider rotating all device credentials as a precautionary measure
  • Update the device with the new credentials
  • Review and strengthen IAM permissions for IoT Core device management
  • Enable enhanced monitoring for IoT device activities
  • Consider implementing device-level authentication policies