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"DigiCert Grows SSL/TLS Business Via Verizon Enterprise SSL Deal". www.eweek.com. Retrieved 2015-10-12.  "DigiCert Acquires Verizon Enterprise SSL Business"

web's SSL certificates". PC World. Retrieved March 24, 2017.  Fariñas, Rafael (March 26, 2017). "Symantec loses Google's trust over fishy SSL Certificates"