# Multi-Instance detection \[Android devices only]
Multi-instance refers to the ability to launch multiple instances of the same application—either intentionally (such as through app cloning or multi-user modes) or unintentionally (due to a malicious attack or system bug). Each instance may run in a separate process, which can lead to security, privacy, or data consistency issues—especially in sensitive applications like finance, messaging, or enterprise tools.
Currently, detection of multi-instance using [Parallel Space](https://play.google.com/store/apps/details?id=com.lbe.parallel.intl\&hl=en) is supported.
Below are code snippets demonstrating passcode detection across various platforms:
```dart
// Android multi instance check
override fun onMultiInstanceDetected() {
TODO("Not yet implemented")
}
// Flutter multi instance detection
onMultiInstance: () => print("Multi instance detected")
// Cordova multi instance detection
multiInstance: () => {
// Place your reaction here
}
// React Native multi instance detection
multiInstance: () => {
// Place your reaction here
}
// Capacitor multi instance detection
multiInstance: () => {
// Place your reaction here
}
```
{% hint style="info" %}
**Recommended action:** Log the event on your BE and optionally react to it.
{% endhint %}
### Read More
What is multi-instacing, why is it an issue and how to detect it?
Introducing Multi-Instancing Detection for freeRASP
