---
id: bridge-devices.what-encryption-does-bridge-use
url: https://storagestudio.us/faq/bridge-devices/what-encryption-does-bridge-use
category: "Bridge & your devices"
subcategory: "Privacy & security"
question: "What encryption does Bridge use?"
alt_questions:
  - "Which cipher does Storage Studio Bridge use?"
  - "How does the Bridge secure tunnel work?"
  - "Bridge encryption technical details"
  - "Is Bridge encryption strong?"
  - "How are Bridge devices authenticated?"
short_answer: "We don't publish the internals, but Bridge is end-to-end encrypted between your two devices, each device has its own security key, and the six-digit Tunnel Code lets you confirm nobody is in the middle."
tags: ["bridge", "encryption", "security"]
related: ["https://storagestudio.us/faq/bridge-devices/is-bridge-private", "https://storagestudio.us/faq/bridge-devices/what-is-the-tunnel-code", "https://storagestudio.us/faq/bridge-devices/can-someone-else-connect-to-my-mac-with-bridge"]
applies_to: "all"
last_reviewed: 2026-10-01
---

# What encryption does Bridge use?

We don't publish the details of how Bridge's encryption is built, but here's what it means for you: everything is end-to-end encrypted between your two devices, so only the receiving device can read what the sending device sends. Each device is identified by its own security key, and the six-digit Tunnel Code lets you check — with your own eyes — that nobody is in the middle.

Only devices you've paired can connect, and a device you **Forget** can't connect back.

- [Is Bridge private?](https://storagestudio.us/faq/bridge-devices/is-bridge-private)
- [The Tunnel Code](https://storagestudio.us/faq/bridge-devices/what-is-the-tunnel-code)