> For the complete documentation index, see [llms.txt](https://docs.zipy.ai/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.zipy.ai/zipy-for-mobile/flutter-setup/input-masking-and-custom-masking.md).

# Input Masking & Custom Masking

Zipy’s **Input Masking** feature ensures that all input field data on the screen is automatically masked during session recordings. This powerful feature prevents sensitive information from being visible in the recordings, safeguarding user privacy and maintaining compliance with data security standards.

Masks sensitive information to prevent unauthorized viewing.

**Update the Flutter package version to 0.0.7 or above.** 

This feature is enabled by default, providing seamless protection for your mobile session replays.

<figure><img src="/files/aR5OMhrJpdlZHt4PEfTH" alt=""><figcaption></figcaption></figure>

### **Custom Input Masking**

Zipy also offers custom input masking options. You can implement these by wrapping buttons, widgets, or containers with `ZipyBlock`. See the example below for guidance.

```dart
import 'package:zipy_flutter/zipy_flutter.dart';

ZipyBlock(
 child: ElevatedButton(
  onPressed: dioPostFailCall,
  child: Text('Dio POST Fail'),
 ),
),
```

**Note**: Input masking is enabled by default. For custom masking options, please contact us at [support@zipy.ai](mailto:undefined).