Skip to main content

Home Secure enclave

Secure enclave

Secure enclave definition

A secure enclave represents a feature embedded in contemporary computing hardware, offering an additional security level to protect data. This separate component, positioned within the device's central processing unit (CPU), takes responsibility for cryptographic functions and safeguarding confidential data. With the ability to resist both software and hardware access, the secure enclave amplifies data security significantly.

See also: network encryption, end-to-end encryption, biometric security

Secure enclave examples

  • Smartphones: Modern smartphones, such as iPhones, use secure enclaves to handle biometric data like fingerprints and face recognition data, along with other sensitive information like Apple Pay transactions.
  • Computers: Laptops and desktops, like those in the Apple Mac line, use secure enclaves to encrypt and protect user data, including user passwords and encryption keys.

Advantages and disadvantages of secure enclaves


  • Enhanced security: By storing sensitive data separately from the main processor, secure enclaves prevent unauthorized access to this information, even if the device is compromised.
  • Data privacy: As the secure enclave only permits access after verifying the user's identity, it ensures user privacy.


  • Hardware limitations: Secure enclaves are a hardware feature, meaning their availability depends on the device and cannot be added later.
  • Non-universal: Not all devices support secure enclaves, limiting the potential for a unified security approach.

Using secure enclaves

  • Stay updated: Ensure your device's firmware is up to date to benefit from any improvements or patches for the secure enclave.
  • Use complementing software: Pair the secure enclave with strong security software and a reliable VPN for a comprehensive security approach.