---
title: "readAttributeSecurityType(completionHandler:)"
framework: matter
role: symbol
role_heading: Instance Method
path: "matter/mtrbaseclusterwifinetworkdiagnostics/readattributesecuritytype(completionhandler:)"
---

# readAttributeSecurityType(completionHandler:)

## Declaration

```swift
func readAttributeSecurityType(completionHandler: @escaping @Sendable (NSNumber?, (any Error)?) -> Void)
```

```swift
func readAttributeSecurityType() async throws -> NSNumber
```