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# SetIsProtected

Sets a Boolean value that indicates if the box requires authentication before use.

```
kern_return_t SetIsProtected(bool in_is_protected);
```

## Parameters

`in_is_protected`

The new value of the box’s protection state.

## Return Value

<doc://com.apple.documentation/documentation/DriverKit/kIOReturnSuccess> on success, or another value if an error occurs. For a list of error codes, see <doc://com.apple.documentation/documentation/DriverKit/error-codes>.

## Discussion

If successful, changing the protection state sends a notification to the host to update the object state.

This method synchronizes by using the work queue created by the object.

---

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