---
title: updateEventMask
framework: security
role: symbol
role_heading: Type Property
path: security/seckeychaineventmask/updateeventmask
---

# updateEventMask

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

## Declaration

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