CAs (Certificate Authorities)

Certificate Authorities (CAs) are trusted organizations that verify and issue digital certificates, which confirm the identity of websites and secure online communication. Think of them as official digital notaries; they validate that a website is legitimate and encrypt the data exchanged to protect your privacy. When you visit a secure site, your browser checks the site’s certificate issued by a CA. If trusted, the connection is established securely. CAs are essential for maintaining trust and security across the internet, ensuring that sensitive information like passwords and credit card details remain confidential during online interactions.