Detection of Out of Band Data

For Android, detect Out of Band Data by correlating analyst-visible device/network evidence and management state; use streaming or batched telemetry only where the documented collector is deployed. Correlate API Calls via Application Vetting / Instrumented Dynamic Analysis [Dynamic API/runtime trace: NotificationListenerService.onNotificationPosted() receiving notifications from source_app IN $HighValueNotifApps$ by listener NOT IN $NotificationAllowList$]; Network Traffic Content via Enterprise Secure Web Gateway / Proxy [DNS/HTTP(S) inspection or proxy transaction metadata where enterprise decryption/inspection is deployed]; System Notifications via Android Enterprise / Managed App Telemetry [Documented DPC/admin callbacks or managed-app generated event telemetry]. Alert on a sequence or state change inconsistent with the device/app baseline, approved management policy, or expected user workflow; do not infer unobserved API calls, file/process activity, or payload content from management state alone.