---
title: errSSLATSCertificateHashAlgorithmViolation
framework: security
role: symbol
role_heading: Global Variable
path: security/errsslatscertificatehashalgorithmviolation
---

# errSSLATSCertificateHashAlgorithmViolation

The peer certificate hash algorithm isn’t App Transport Security compliant.

## Declaration

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

## Discussion

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