How to Bypass SSL Certificate Errors in C#?

Handling Untrusted SSL Certificates in C#

Connecting to a web service can sometimes result in an SSL/TLS secure channel trust failure:

<code>Could not establish trust relationship for the SSL/TLS secure channel. ---> System.Security.Authentication.AuthenticationException: The remote certificate is invalid according to the validation procedure.</code>

This usually means the client doesn't recognize or trust the server's certificate. In certain situations, you might need to proceed despite this error.

C# allows you to override certificate validation by implementing a custom validation callback. This callback receives details about the certificate and allows you to accept or reject it. By returning true, you bypass the validation check:

ServicePointManager.ServerCertificateValidationCallback += (sender, cert, chain, sslPolicyErrors) => true;

Important Security Note: Disabling certificate validation significantly weakens your application's security. Only employ this method if you fully trust the remote server and have exhausted all other options. Improper use can expose your application to man-in-the-middle attacks and other vulnerabilities.

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