# Revoking a client SSL web service certificate
This guide explains how to revoke a client SSL certificate that is compromised or that you do not want to use any longer.
The information on this page applies to Signicat's SOAP web services as well as Signicat's standalone Session Data Storage (SDS) REST web service.
For general information about SSL certificates, please refer to our page on SSL web service certificates. For more information about how to set up the certificate on your server, refer to our page on setting up two-way SSL.
Our SOAP web services in production require you to provide a client SSL certificate with all SOAP web service calls.
It is important that a certificate that is lost or compromised in any other way is revoked as soon as possible.
It is possible for you to have multiple certificates to your service. Signicat does not automatically revoke the old certificate even if you order a new one.
# 1. Contact Signicat
Send a request to firstname.lastname@example.org with the following information:
- The name of the certificate that you want to revoke
- The reason why you want to revoke the certificate
If the certificate is compromised, also do the following:
- Include information about how and when the certificate was compromised
- Call Signicat Support immediately on +47 40003410 to ensure that the certificate is revoked as soon as possible. We are available around the clock for this kind of request.
# 2. Get a new certificate
Follow the standard procedure to get a new certificate using our guide to obtaining a client SSL web service certificate.