Certificates issued by GeoTrust, RapidSSL, Symantec, Thawte, and VeriSign are no longer considered safe because these certificate authorities failed to follow security practices in the past.
GeoTrust, RapidSSL, Symantec, Thawte eta VeriSign-ek jaulkitako ziurtagiriak hemendik aurrera ez dira fidagarritzat jotzen iraganean ez dituztelako segurtasun-praktikak jarraitu.