com.sec.android.diagmonagent Copy

Labelled "DiagMonAgent" on the device, this is a Samsung background service with no launcher icon. Its permission set on this site's provenance data points clearly at diagnostics rather than anything user-facing: it holds READ_LOGS, READ_DROPBOX_DATA (the system's crash and error store), PACKAGE_USAGE_STATS, INTERNET, and a permission published by Samsung's own DQ Agent for receiving abnormal-event intents. In plain terms it gathers device log and fault data and can send it onwards. It is Samsung platform-signed and is recorded here from API 28 through API 37, so it is a long-standing component rather than a recent addition. The user-visible control that governs this kind of collection is Samsung's "Send diagnostic data" setting, which Samsung documents as allowing it "to collect diagnostic data from your device to improve its services", found under Settings, Security and privacy, More privacy settings. A note of honesty: Samsung does not publish a page naming this package as the component behind that toggle, so the link between the two is a reasonable reading of the package's role and permissions rather than a documented fact. For Android Enterprise, EMM and kiosk use it has no documented role in enrolment or policy, and nothing in its permission set points at one, so the interest in it is a privacy one: whether device logs should leave the estate at all. Turning the diagnostic-data setting off is the supported way to stop uploads. Disabling the package outright is rated with caution here because other Samsung components, including Samsung Members diagnostics and device-health reporting, sit in the same area, and neither its enterprise dependencies nor the knock-on effects of removing it are documented by Samsung, so test on one device first. Version note: administrators enrolling Android 12 devices see something the older releases did not show. Samsung's Knox knowledge base records that on Android 12, if the user accepts the optional "Sending of Diagnostic Data" option on the Terms and Conditions screen, a message appears during or just after enrolment saying that policy has been withdrawn based on the admin policy set for the phone. Samsung gives the cause as Google's guidance for the Android Enterprise Recommended programme, in its words that "Data collection is not allowed during the Setup Wizard phase", and states there is no other side effect from the pop-up. The KBA describes the enrolment message rather than this package, so read it as context for the diagnostic-data option, not as documentation of the component behind it.

• 'Sending of Diagnostic Data' message shown in Android 12 - Knox Platform for Enterprise, Samsung Knox Documentation →
• Use Security and privacy settings on Galaxy phones and tablets - Samsung US →
• Package provenance for com.sec.android.diagmonagent - Android System App Database →

• Signed by the device maker's own signing key (Samsung), so it is an OEM preinstall, and that single certificate is consistent across all 21 device profiles. It also signs the Android framework, so it is a platform-level key on its device(s). Inferred from the certificate appearing only on Samsung devices (508 packages, 10196 observations).
• Its largest observed manifest declares 13 permissions: 5 signature or system-level, 4 install-time and 4 vendor or uncatalogued.
• Never reported as user-facing, so it runs as a background or system component rather than an app the user opens.