---
title: kSecTransformActionFinalize
framework: security
role: symbol
role_heading: Global Variable
path: security/ksectransformactionfinalize
---

# kSecTransformActionFinalize

An action that triggers just before deleting a custom transform to enable custom cleanup operations.

## Declaration

```swift
let kSecTransformActionFinalize: CFString
```

## Discussion

Discussion Overrides the standard behavior that occurs just before deleting a custom transform. This is typically overridden to allow for memory clean up of a custom transform. This is used with the SecTransformOverrideTransformAction block.