> For the complete documentation index, see [llms.txt](https://docs.talsec.app/freerasp/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.talsec.app/freerasp/freerasp/wiki/threat-detection/secure-hardware-detection-keystore-keychain-secure-storage-check.md).

# Secure Hardware detection (Keystore/Keychain secure storage check)

The Secure Enclave and the Android Keystore system make it very difficult to decrypt sensitive data without physical access to the device. In that order, these keys need to be stored securely. freeRASP checks if the keys reside inside secure hardware.

Below are code snippets demonstrating missing hardware detection across various platforms:

```dart
// Android Keystore
override fun onSecureHardwareNotAvailable() {
    TODO("Not yet implemented")
}

// iOS Secure Enclave
case missingSecureEnclave

// Flutter HW backed keystore not available and missing secure enclave detection
onSecureHardwareNotAvailable: () => print("Secure hardware not available")

// Cordova HW backed keystore not available and missing secure enclave detection
secureHardwareNotAvailable: () => {
    // Place your reaction here
}

// React Native HW backed keystore not available and missing secure enclave detection
secureHardwareNotAvailable: () => {
    // Place your reaction here
}

// Capacitor HW backed keystore not available and missing secure enclave detection
secureHardwareNotAvailable: () => {
    // Place your reaction here
}
```

{% hint style="info" %}
**Recommended action:** Ignore the callback or log the event to your BE.
{% endhint %}


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