Certificate Transparency maintains publicly accessible logs listing TLS/SSL certificates, giving IT teams a way to track all the certificates associated with their domains. Until recently, searching CT logs has been difficult and costly, but Facebook’s new tool makes it easier for IT teams to find certificates they didn’t know about.
Article Link: http://www.infoworld.com/article/3150072/security/facebook-tool-helps-find-malicious-ssl-certificates.html#tk.rss_all