VeriSign SSL Certificates Rebranded as Symantec
For many years, VeriSign SSL Certificates have been some of the most trusted and authoritative SSL certificates on the market. In fact, they still are. Just under a different name.
In August 2010, VeriSign was acquired by Symantec, which, in turn, merged with DigiCert. Following the acquisition, in April 2012, Symantec upgraded all the VeriSign SSL Certificates. As such, certificates formerly known as VeriSign SSL Certificates became Symantec Secure Site SSL or DigiCert Secure Site SSL Certificates.
In short, Verisign certificates are SSL/TLS certificates that are now known as Symantec Secure Site SSL or DigiCert Secure Site SSL Certificates.