A CA publishes its Certificate Service Policy Statement on its website. It explains the terms of business and details about the issuance of certificates. Prior to buying a digital certificate, this statement should be read in order to determine whether or not the CA is fraudulent. There are some companies that sign their own certificates, which could mean one of two things: either the company is a fraud or there is no higher authority to sign its certificate, meaning it is the top most company in this infrastructure. In this case, the validity of a company's certificate can be found out by searching the company's name.<ref>[http://www.opera.com/support/kb/view/191/ Opera]</ref> | A CA publishes its Certificate Service Policy Statement on its website. It explains the terms of business and details about the issuance of certificates. Prior to buying a digital certificate, this statement should be read in order to determine whether or not the CA is fraudulent. There are some companies that sign their own certificates, which could mean one of two things: either the company is a fraud or there is no higher authority to sign its certificate, meaning it is the top most company in this infrastructure. In this case, the validity of a company's certificate can be found out by searching the company's name.<ref>[http://www.opera.com/support/kb/view/191/ Opera]</ref> |