---
title: unlockEventMask
framework: security
role: symbol
role_heading: Type Property
path: security/seckeychaineventmask/unlockeventmask
---

# unlockEventMask

If the bit specified by this mask is set, your callback function is invoked when a keychain is unlocked.

## Declaration

```swift
static var unlockEventMask: SecKeychainEventMask { get }
```