---
url: 'https://www.corbado.com/faq/device-bound-passkeys-security'
title: 'How do device-bound passkeys enhance security?'
description: 'Device-bound passkeys provide enhanced security by restricting authentication credentials to a single device, preventing unauthorized access.'
lang: 'en'
---

# How do device-bound passkeys enhance security?

## How Do Device-Bound Passkeys Enhance Security?

[Device-bound passkeys](https://www.corbado.com/blog/fbi-operation-winter-shield-passkeys) are a type of WebAuthn
credential that is strictly tied to the device on which they were created. Unlike synced
passkeys, which can be backed up and retrieved from a cloud account, **device-bound
passkeys remain on a single device**, making them inherently more secure in certain use
cases. Here's why:

### 1. Protection Against Phishing Attacks

- Since the private key never leaves the device, attackers cannot intercept or steal
  credentials through [phishing](https://www.corbado.com/glossary/phishing) attempts.
- Even if a user is tricked into visiting a fraudulent website, their passkey cannot be
  used to authenticate with the malicious site.

[Watch on YouTube](https://www.youtube.com/watch?v=V1Pc4Gl0xKc)

### 2. Prevention of Unauthorized Access

- [Device-bound passkeys](https://www.corbado.com/blog/fbi-operation-winter-shield-passkeys) ensure that
  authentication only happens from the specific device where the passkey was created.
- This prevents attackers from accessing an account from an untrusted device, even if they
  somehow obtained the public key.

### 3. Hardware-Backed Security

- These passkeys are stored in secure hardware modules such as:
    - **Secure Enclave** (Apple)
    - **Trusted Platform Module (TPM)** (Windows)
    - **Trusted Execution Environment (TEE)**
      ([Android](https://www.corbado.com/blog/how-to-enable-passkeys-android))
- These modules protect against tampering and unauthorized extraction of passkeys.

### 4. No Cloud Dependency Reduces Attack Surface

- Unlike synced passkeys, which rely on cloud storage,
  [device-bound passkeys](https://www.corbado.com/blog/fbi-operation-winter-shield-passkeys) **eliminate risks
  associated with cloud data breaches or account takeovers**.
- There is no risk of attackers gaining access by compromising cloud accounts.

### 5. Compliance with High-Security Environments

- Many regulated industries, such as **financial services and government agencies**,
  require strict device-bound authentication to meet compliance standards.
- Device-bound passkeys ensure that **credentials cannot be exported or shared**, making
  them an ideal choice for environments requiring the highest level of authentication
  security.

## Are There Any Downsides?

While device-bound passkeys offer strong security, they have **limited portability**:

- If the device is lost or replaced, the passkey cannot be recovered unless the user
  manually registers a new one.
- Users must maintain a backup authentication method, such as a secondary passkey on
  another trusted device.

## Conclusion

Device-bound passkeys significantly **enhance security** by ensuring that authentication
remains locked to a specific device, reducing [phishing](https://www.corbado.com/glossary/phishing) risks,
eliminating cloud-based attack vectors, and leveraging hardware-backed protection. They
are particularly suited for high-security applications where **strict device control** is
required.

## Read the full article