SSL/TLS encrypts traffic between a client and a server. For websites, this is what allows a browser to use HTTPS instead of unencrypted HTTP.
Current cPanel & WHM versions support TLS 1.2 and TLS 1.3. A valid certificate also lets a browser verify that the server is presenting a certificate for the requested hostname.
What SSL/TLS provides
- Encryption while data travels across the network.
- Server identity through a certificate issued for the requested domain.
- Protection against casual interception or alteration of traffic in transit.
What SSL/TLS does not provide
HTTPS does not prove that website code is safe, remove malware, patch outdated software, or prevent stolen account credentials from being used. Treat SSL/TLS as one layer of website security rather than a complete security system.