What is a Certificate Authority? Why do they matter?

Although Certificate Authorities (CAs) are central to the operation of the SSL industry and, in turn, the overall security of the Internet, casual Internet users probably don’t know a whole lot about them. They visit websites with HTTPS-enabled websites not realising the role CAs play in establishing that secure connection. Similarly, some website owners may buy an SSL certificate without really knowing where it came from. 

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Why we use SSL: a behind the scenes look

These days, SSL certificates are widely regarded as essential for websites to make them more secure. Not only do website owners know this, but general Internet users do too. However, although SSL certificates have become such a given across the web, many people probably aren’t aware of the origin story of these powerful digital certificates.
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