CA (Certificate Authority)

A Certificate Authority (CA) is an organization that verifies the identity of websites and entities online. When a website uses encryption (HTTPS), the CA issues a digital certificate confirming that the website is legitimate and secure. This process helps users trust that they’re communicating with the real site and not an imposter. Think of a CA as a trusted notary who validates identities and issues official documents (certificates). These certificates enable secure data exchange, protect privacy, and prevent fraud in digital communications.