Letro Privacy Policy

Last updated: April 2026

Summary

• Letro collects only the data necessary to operate the service
• Communications may be end-to-end encrypted
• Organizations may control enterprise data
• We do not sell personal data

1. Introduction

Letro is a next-generation formal communication platform designed for enterprises and institutions, built on top of the Matrix protocol.

This Privacy Policy explains how we collect, use, and protect your information when using Letro.

By using Letro, you agree to this policy.

2. Who We Are

Letro provides secure communication infrastructure for organizations, enabling structured messaging and formal workflows.

Roles:

• Letro = Data Processor (in most enterprise cases)
• Your organization = Data Controller

3. Information We Collect

3.1 Information You Provide

• Name, email, organization
• Profile details (optional)
• Messages, files, and communications
• Support requests

3.2 Automatically Collected

• Device and browser type
• IP address and approximate location
• Usage activity and logs
• Diagnostics and performance data

3.3 Organization-Provided Data

If using Letro via an organization:

• Account details may be provisioned by your employer
• Admins may manage and access your data

4. How We Use Information

We use data to:

• Provide and maintain Letro
• Enable secure Matrix-based communication
• Authenticate users
• Improve performance and features
• Provide support
• Comply with legal obligations

We do not sell personal data.

5. Messaging & Data Handling

Matrix Protocol

Letro operates on the Matrix protocol, which may include:

• Federated or decentralized message routing
• Storage on Letro or organization-controlled servers

Encryption

• Some messages may be end-to-end encrypted
• Encrypted content is not accessible by Letro

Retention

Data is retained based on:

• Organizational policies
• Default system configurations

6. Sharing of Information

Service Providers

We may share data with:

• Hosting providers
• Infrastructure services
• Security and monitoring tools

Organizations

• Enterprise admins may access and manage user data

Legal Requirements

We may disclose data if required to:

• Comply with law
• Respond to legal requests
• Protect rights and safety

7. International Transfers

Your data may be processed in multiple countries with appropriate safeguards.

8. Security

We implement:

• Encryption in transit (and optionally end-to-end)
• Access controls
• Monitoring systems
• Secure infrastructure practices

No system is 100% secure.

9. Your Rights

Depending on your jurisdiction, you may:

• Access your data
• Correct inaccurate data
• Request deletion
• Restrict processing
• Request portability

For enterprise accounts, contact your organization admin.

10. Cookies & Tracking

Letro may use cookies to:

• Maintain sessions
• Improve performance
• Analyze usage

You can control cookies via your browser.

11. Children’s Privacy

Letro is not intended for users under 16 (or local equivalent). We do not knowingly collect children’s data.

12. Changes to This Policy

We may update this policy. Changes will be reflected with a new “Last updated” date.

13. Contact

Email: [email protected] (replace if needed)

Organization: Letro