What is CoreAuthentication.daemon?

CoreAuthentication.daemon is a process you may notice in Activity Monitor, especially on Macs with Touch ID.

What is CoreAuthentication.daemon?

CoreAuthentication.daemon is the system daemon for Apple's CoreAuthentication framework. It handles local identity checks on your Mac. It verifies who you are when you unlock your Mac, approve system changes, or use Touch ID.

What does it handle?

The daemon manages:

• Touch ID checks
• Password verification for system prompts
• Apple Watch unlock
• Smart card login
• Requests from apps that use the LocalAuthentication framework

When an app asks you to verify with Touch ID (for example, to unlock a password manager or approve a purchase), CoreAuthentication.daemon carries out the check.

Why is it always running?

It needs to be ready for login requests at any time, from unlocking your screen to approving a system change. The daemon stays in memory so it can respond at once when Touch ID or password verification is needed.

Does it use many resources?

No. It waits for requests and handles them quickly.

Should you worry?

No. It is a core macOS security process that verifies your identity. It is needed for Touch ID, Apple Watch unlock, and any app that uses fingerprint or face verification.

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