> ## Documentation Index
> Fetch the complete documentation index at: https://cometchat-22654f5b-docs-platform-docs-release.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Security

> Extensions that enhance security in your chat application

These extensions add security features to protect sensitive conversations and give users more control over their messages.

***

## Disappearing messages

The Disappearing messages extension allows end-users to send messages that disappear after a certain interval of time. This extension works for both private (one-on-one) and group messages.

Also known as "exploding messages" or "ephemeral messages" on other platforms.

**When to use:**

* Privacy-sensitive industries (healthcare, legal, finance)
* Compliance requirements for data retention
* Confidential business discussions
* Any scenario where message permanence is a concern

<Note>
  **Out-of-the-box in:** [UI Kit Builder](/chat-builder/react/features) <Tooltip tip="Not available out of the box in the UI Kit — supported via the SDK and requires custom implementation.">🔨</Tooltip> | [Widget Builder](/widget/html/features) ❌ | [UI Kits](/ui-kit/react/core-features) <Tooltip tip="Not available out of the box in the UI Kit — supported via the SDK and requires custom implementation.">🔨</Tooltip> | [SDK](/sdk/javascript/overview) ✅
</Note>

### Extension settings

<Steps>
  <Step title="Open your CometChat app">
    Login to [CometChat](https://app.cometchat.com/login) and select your app.
  </Step>

  <Step title="Enable Disappearing Messages">
    Go to **Chat & Messaging --> Features**, under **Extentions** and enable **Disappearing Messages**.
  </Step>
</Steps>

### How does it work?

Once the messages are sent, you can immediately schedule them for deletion using the disappearing messages extension. The message with the mentioned `msgId` gets deleted at `timeInMS`.

<Warning>
  The value of `timeInMS` should be less than 1 year.
</Warning>

### Implementation

| Technology                                     | Support                                                                                                                            | Docs                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   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| [UI Kit Builder](/chat-builder/react/features) | <Tooltip tip="Not available out of the box in the UI Kit — supported via the SDK and requires custom implementation.">🔨</Tooltip> |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         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| [Widget Builder](/widget/html/features)        | ❌                                                                                                                                  |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        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| [UI Kits](/ui-kit/react/core-features)         | <Tooltip tip="Not available out of the box in the UI Kit — supported via the SDK and requires custom implementation.">🔨</Tooltip> | <span style={{display: 'flex', gap: '8px', alignItems: 'center'}}><a href="/sdk/javascript/extensions/security#disappearing-messages" style={{textDecoration: 'none', border: 'none'}}><img src="https://mintcdn.com/cometchat-22654f5b-docs-platform-docs-release/nBkX5KhzzDWIdWuk/images/icons/js.svg?fit=max&auto=format&n=nBkX5KhzzDWIdWuk&q=85&s=ac02c5c31b3694feeb4b07c73bd478cc" alt="JavaScript" width="16" height="16" style={{display: 'block'}} data-path="images/icons/js.svg" /></a><a href="/sdk/react-native/extensions/security#disappearing-messages" style={{textDecoration: 'none', border: 'none'}}><img src="https://mintcdn.com/cometchat-22654f5b-docs-platform-docs-release/nBkX5KhzzDWIdWuk/images/icons/react.svg?fit=max&auto=format&n=nBkX5KhzzDWIdWuk&q=85&s=c00e3ae8e088c99fc43b5ca82a149802" alt="React Native" width="16" height="16" style={{display: 'block'}} data-path="images/icons/react.svg" /></a><a href="/sdk/android/extensions/security#disappearing-messages" style={{textDecoration: 'none', border: 'none'}}><img src="https://mintcdn.com/cometchat-22654f5b-docs-platform-docs-release/nBkX5KhzzDWIdWuk/images/icons/android.svg?fit=max&auto=format&n=nBkX5KhzzDWIdWuk&q=85&s=f03fe7acbaded87373ae7f085318e005" alt="Android" width="16" height="16" style={{display: 'block'}} data-path="images/icons/android.svg" /></a><a href="/sdk/ios/extensions/security#disappearing-messages" style={{textDecoration: 'none', border: 'none'}}><img src="https://mintcdn.com/cometchat-22654f5b-docs-platform-docs-release/nBkX5KhzzDWIdWuk/images/icons/swift.svg?fit=max&auto=format&n=nBkX5KhzzDWIdWuk&q=85&s=25f757820a35df0e38aaa5f211c0f26d" alt="iOS" width="16" height="16" style={{display: 'block'}} data-path="images/icons/swift.svg" /></a><a href="/sdk/flutter/extensions/security#disappearing-messages" style={{textDecoration: 'none', border: 'none'}}><img src="https://mintcdn.com/cometchat-22654f5b-docs-platform-docs-release/nBkX5KhzzDWIdWuk/images/icons/flutter.svg?fit=max&auto=format&n=nBkX5KhzzDWIdWuk&q=85&s=261208c44e5880cbf04f70d560406a45" alt="Flutter" width="16" height="16" style={{display: 'block'}} data-path="images/icons/flutter.svg" /></a></span> |
| [SDK](/sdk/javascript/overview)                | ✅                                                                                                                                  | <span className="sdk-icons"><a href="/sdk/javascript/extensions/security#disappearing-messages"><Icon icon="https://mintcdn.com/cometchat-22654f5b-docs-platform-docs-release/nBkX5KhzzDWIdWuk/images/icons/js.svg?fit=max&auto=format&n=nBkX5KhzzDWIdWuk&q=85&s=ac02c5c31b3694feeb4b07c73bd478cc" size={16} width="32" height="32" data-path="images/icons/js.svg" /></a><a href="/sdk/react-native/extensions/security#disappearing-messages"><Icon icon="https://mintcdn.com/cometchat-22654f5b-docs-platform-docs-release/nBkX5KhzzDWIdWuk/images/icons/react.svg?fit=max&auto=format&n=nBkX5KhzzDWIdWuk&q=85&s=c00e3ae8e088c99fc43b5ca82a149802" size={16} width="32" height="32" data-path="images/icons/react.svg" /></a><a href="/sdk/android/extensions/security#disappearing-messages"><Icon icon="https://mintcdn.com/cometchat-22654f5b-docs-platform-docs-release/nBkX5KhzzDWIdWuk/images/icons/android.svg?fit=max&auto=format&n=nBkX5KhzzDWIdWuk&q=85&s=f03fe7acbaded87373ae7f085318e005" size={16} width="32" height="32" data-path="images/icons/android.svg" /></a><a href="/sdk/ios/extensions/security#disappearing-messages"><Icon icon="https://mintcdn.com/cometchat-22654f5b-docs-platform-docs-release/nBkX5KhzzDWIdWuk/images/icons/swift.svg?fit=max&auto=format&n=nBkX5KhzzDWIdWuk&q=85&s=25f757820a35df0e38aaa5f211c0f26d" size={16} width="32" height="32" data-path="images/icons/swift.svg" /></a><a href="/sdk/flutter/extensions/security#disappearing-messages"><Icon icon="https://mintcdn.com/cometchat-22654f5b-docs-platform-docs-release/nBkX5KhzzDWIdWuk/images/icons/flutter.svg?fit=max&auto=format&n=nBkX5KhzzDWIdWuk&q=85&s=261208c44e5880cbf04f70d560406a45" size={16} width="32" height="32" data-path="images/icons/flutter.svg" /></a></span>                                                                                                                                                                                                                                                                                                                                                                                                                                                 |