Subprocessors List

We minimize reliance on third parties. Below are the entities that handle encrypted bits or metadata.

Insights That Drive Secure Communication Forward

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How to report a security vulnerability in letro.com or the Letro applications, and what you can expect from us.

Vulnerability Disclosure Policy

Letro is encrypted and evidential. Here is how those two properties fit together.

How End-to-End Encryption and Auditability Coexist

Where Letro data lives, who operates it, and how each deployment tier changes the answer.

Data Residency & Infrastructure