---
title: Major Certificate Authority Blocks Access to Certain HTTPS Sites
description: One of the largest certifiate authorities leaves users unable to access certain websites.
---

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# [Major Certificate Authority Blocks Access to Certain HTTPS Sites](https://www.secureworld.io/industry-news/major-certificate-authority-blocks-access-to-certain-https-sites)

 Written by [SecureWorld News Team](https://www.secureworld.io/industry-news/author/secureworld-news-team) | Fri | Oct 14, 2016 | 7:00 AM Z

One of the largest certifiate authorities leaves users unable to access certain websites.

[CSO Explains:](http://www.csoonline.com/article/3131349/security/globalsign-certificate-revocation-error-leaves-websites-inaccessible.html)

> Users around the world have had trouble accessing some HTTPS websites due to an error at GlobalSign, one of the world's largest certificate authorities.
> 
> As part of a planned exercise, GlobalSign revoked one of its cross-certificates that allowed end-user certificates to chain to alternate root certificates. GlobalSign operates multiple roots, which are trusted in browsers and operating systems by default, and links them together through these cross-certificates.
> 
> The revocation of such a certificate was interpreted by some browsers and systems also as a revocation of the intermediate certificates that chained back to it. This was not really the case or the company's intention.

[View full post](https://www.secureworld.io/industry-news/major-certificate-authority-blocks-access-to-certain-https-sites)

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