> For the complete documentation index, see [llms.txt](https://docs.secr.network/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.secr.network/key-features/one-time-chat-links.md).

# One-Time Chat Links

One-Time Chat Links allow SECR users to send encrypted messages, files, and short conversations to people who do not have the SECR application installed. These links create a temporary, private communication session that disappears automatically after use.

This feature makes it easy to share sensitive information securely with external contacts, without requiring them to join the platform.

***

### **1. Temporary, Encrypted Sessions**

When a user creates a One-Time Chat Link, SECR generates a temporary encrypted chat session.\
The recipient can open the link in any modern browser.

Each session includes:

• end-to-end encrypted messages\
• secure file transfers\
• automatic expiration\
• no registration required

The content is fully encrypted before being sent and decrypted only in the recipient’s browser.

***

### **2. No App Installation Required**

The recipient does not need to:

• download SECR\
• create an account\
• provide personal information\
• install plugins or extensions

This makes One-Time Chat Links ideal for situations where the recipient cannot install apps or prefers not to expose their identity.

***

### **3. Automatic Expiration**

Each One-Time Chat Link is designed to self-destruct.

A link expires when:

• it is opened\
• the session ends\
• the predefined time limit passes\
• the sender manually revokes it

Expired links cannot be reopened, preventing long-term storage or unintended access.

***

### **4. Minimal Metadata Exposure**

SECR does not store:

• conversation history\
• identity details\
• IP-to-user associations\
• link access logs\
• contact relationships

The link is simply a temporary cryptographic reference.\
Once the session ends, SECR servers retain no usable information.

***

### **5. Secure File Sharing**

Users can include files in the one-time session.\
Uploaded files are:

• encrypted client-side\
• processed entirely in memory (no long-term storage)\
• accessible only during the active session\
• permanently discarded after expiration

This allows sensitive documents or media to be shared safely without traditional cloud links.

***

### **6. Ideal Use Cases**

One-Time Chat Links are especially useful for:

• sharing sensitive information with non-SECR users\
• journalists contacting sources\
• private business exchanges\
• sending confidential files\
• invitations to secure communication without onboarding friction

Recipients can view the message securely, then the link disappears.

***

One-Time Chat Links provide a secure, frictionless way to communicate privately outside the SECR ecosystem, without requiring installation, registration, or long-term data storage.