A certificate authority is a trusted organization that can vouch for the authenticity of a person or organization.

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A certificate authority (CA) is a trusted entity that issues digital certificates used to verify the identity of people, organizations, or websites. When a CA issues a certificate, it vouches for the identity and authenticity of the certificate holder. This provides assurance to others that they can trust the identity of the individual or organization with whom they are communicating.

A Certificate Authority Is a Trusted Organization That Can Vouch