If you receive a notification and determine that a suspicious domain may be phishing your legitimate domain, you can take several steps: look otherwise similar to a legitimate domain.īy subscribing a legitimate domain to phishing alerts, we can notify you whenever a new certificate is issued for a domain that may be phishing the legitimate domain.use easily confused unicode characters ( facҽ), or.use a legitimate domain name as a subdomain of an evil domain ( ),.To help you take advantage of this framework, we have a built a free monitoring tool to help you discover any certificates that have been newly issued for specific domains.īad actors can drive unsuspecting visitors to phishing websites through various domain-related tactics, including obtaining TLS certificates for domain names that: The CT framework allows anyone to log, audit, and monitor publicly-trusted TLS certificates newly issued by any CA. To address this problem, the Certificate Transparency (CT) open framework has been introduced. When this happens it may take weeks before the CA can identify and revoke any improperly issued certificates.

Problems can arise, however, if a CA is compromised or mis-issues a publicly-trusted certificate. There are hundreds of CAs, and they all perform various actions to verify your digital identity before issuing you a publicly-trusted certificate. In order to prevent visitors to your site from seeing an untrusted web site warning when using TLS, you must request a publicly-trusted certificate from a Certificate Authority (CA). If a web browser encounters an untrusted certificate it will warn the user that the site is untrusted and to proceed with caution. Web browsers use TLS certificates to perform encryption and also to identify trusted and untrusted web sites. Transport Layer Security (TLS) allows you to securely exchange data between clients and servers.

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