---
title: trustSettingsChangedEventMask
framework: security
role: symbol
role_heading: Type Property
path: security/seckeychaineventmask/trustsettingschangedeventmask
---

# trustSettingsChangedEventMask

If the bit specified by this mask is set, your callback function is invoked when there is a change in certificate trust settings.

## Declaration

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