Add RN Replay Privacy page (#11798)

Co-authored-by: Bruno Garcia <bruno@brunogarcia.com>
Co-authored-by: Liza Mock <liza.mock@sentry.io>

docs/platforms/react-native/session-replay/index.mdx

@@ -75,7 +75,8 @@ Sampling begins as soon as a session starts. <PlatformIdentifier name="replays-s
 
 ## Privacy
 
-The SDK is recording and aggressively redacting all text and images. We plan to add fine controls for redacting, but in this version, we just allow either on or off. The default is on. Please don’t turn it off if you have sensitive data in your app. Before the Beta is complete, we'll give you the controls you need.
+The SDK is recording and aggressively masking all text, images, and webviews by default. If your app has any sensitive data, you should only turn the default masking off after explicitly masking out any sensitive data, using the APIs described below.
+However, if you're working on a mobile app that doesn't contain any PII or private data, you can opt out of the default text and image-masking settings. To learn more about Session Replay privacy, [read our docs](/platforms/react-native/session-replay/privacy/).
 
 <Note>
 

docs/platforms/react-native/session-replay/privacy/index.mdx

@@ -0,0 +1,114 @@
+---
+title: Privacy
+sidebar_order: 5501
+notSupported:
+description: "Learn how to mask sensitive data that may appear in your app in Session Replay."
+---
+
+<Alert>
+
+Using custom masking in your Session Replays instead of our default settings, may accidentally expose sensitive customer data. Make sure to test your app thoroughly to ensure that no sensitive data is exposed before publishing it.
+
+</Alert>
+
+The Session Replay SDK masks all text content, images, webviews, and user input by default. This helps ensure that no sensitive data is exposed. You can also manually choose which parts of your app to mask by using the options listed below.
+
+If your app doesn't contain any sensitive date, you can disable the default masking behavior with:
+
+```javascript
+Sentry.mobileReplayIntegration({
+  maskAllText: false,
+  maskAllImages: false,
+  maskAllVectors: false,
+}),
+```
+
+_Make sure your Sentry React Native SDK version is 5.36.0, 6.3.0 and up_
+
+## Mask and Unmask Components
+
+You can choose which views you want to mask or unmask by using the `Mask` or `Unmask` components.
+
+```jsx
+import * as Sentry from '@sentry/react-native';
+
+const Example = () => {
+  return (
+    <View>
+      <Sentry.Unmask>
+        <Text>This will be unmasked</Text>
+      </Sentry.Unmask>
+      <Sentry.Mask>
+        <Text>This will be masked</Text>
+      </Sentry.Mask>
+    </View>
+  );
+}
+```
+
+_Make sure your Sentry React Native SDK version is 6.4.0-beta.1 and up to use the masking components_
+
+## General Masking Rules
+
+When components are wrapped by `Unmask`, **only direct children will be unmasked**. You'll need to explicitly wrap any indirect children that you want to appear in the replay.
+
+```jsx
+<Sentry.Unmask>
+  <Text>
+    This will be unmasked
+    <Text>
+      This will be masked
+    </Text>
+  </Text>
+  <Text>
+    This will be unmasked
+  </Text>
+</Sentry.Unmask>
+```
+
+When components are wrapped by `Mask`, **all children will be masked**.
+
+```jsx
+<Sentry.Mask>
+  <Text>
+    This will be masked
+    <Text>
+      This will be masked
+    </Text>
+  </Text>
+  <Text>
+    This will be masked
+  </Text>
+</Sentry.Mask>
+```
+
+### Masking Priority
+
+If a view is marked as masked, it will always be masked, even if it's a child of an unmasked view.
+
+```jsx
+<Sentry.Mask>
+  <Text>This will be masked</Text>
+  <Sentry.Unmask>
+    <Text>This will be masked</Text>
+  </Sentry.Unmask>
+</Sentry.Mask>
+```
+
+The `Mask` component can't be unmasked.
+
+```jsx
+<Sentry.Unmask>
+  <Sentry.Mask>
+    <Text>This will be masked</Text>
+  </Sentry.Mask>
+</Sentry.Unmask>
+```
+
+## Troubleshooting
+
+The `Mask` and `Unmask` components are native on iOS and Android and are compatible with both the New and the Legacy Architecture.
+
+The masking components behave as standard React Native `View` components.
+
+If you're experiencing issues with unmasking that are more than one level deep, check if the wrapped components are present in the native views hierarchy. If not, it means that your view was evaluated by React Native as `Layout Only` and flattened. Read more about [flattening views](https://reactnative.dev/architecture/view-flattening) in the React Native documentation.