---
title: errSSLATSCertificateTrustViolation
framework: security
role: symbol
role_heading: Global Variable
path: security/errsslatscertificatetrustviolation
---

# errSSLATSCertificateTrustViolation

The peer certificate wasn’t issued by a trusted peer.

## Declaration

```swift
var errSSLATSCertificateTrustViolation: OSStatus { get }
```

## Overview

Overview For more information about App Transport Security (ATS) compliance, see Preventing Insecure Network Connections.