Cyber Security Interview Questions and Answers › Cyber Security
What is an SSL/TLS certificate?
A certificate is a digital ID card for a website. A CA (Certificate Authority) checks the site and signs it. It lets HTTPS encrypt traffic. Without it, browsers show 'Not secure' and data travels readable.

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A certificate is a digital ID card for a website. A CA (Certificate Authority) checks the site and signs it. It lets HTTPS encrypt traffic. Without it, browsers show 'Not secure' and data travels readable.
Learn more in the lesson: 13.4 HTTPS with Certbot (Let's Encrypt)