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  2. Fix security certificate error messages in ... - AOL Help

    help.aol.com/articles/message-the-security...

    Get live expert help with your AOL needs—from email and passwords, technical questions, mobile email and more. Call Live AOL Support at 1-800-358-4860 Feedback

  3. List of HTTP status codes - Wikipedia

    en.wikipedia.org/wiki/List_of_HTTP_status_codes

    An expansion of the 400 Bad Request response code, used when a client certificate is required but not provided. 497 HTTP Request Sent to HTTPS Port. An expansion of the 400 Bad Request response code, used when the client has made a HTTP request to a port listening for HTTPS requests. 499 Client Closed Request.

  4. AOL Mail secure connection settings requirement - AOL Help

    help.aol.com/articles/secure-mail-connection-faq

    To maintain the security of your account while accessing AOL Mail through third-party apps, it's necessary to keep your connection settings updated. An email was sent to our customers in 2017 warning that AOL Mail would no longer be accessible through third-party apps if connection settings weren't updated by November 7, 2017.

  5. How AOL uses SSL to protect your account - AOL Help

    help.aol.com/articles/how-aol-uses-ssl-to...

    Credit card security. When you make a purchase on AOL, we'll only finish the transaction if your browser supports SSL. As you enter your credit card number, SSL encodes it so it's transmitted in a format that prevents eavesdropping or data theft. When it's received by our secure server, your credit card number is never transmitted over the ...

  6. HTTPS - Wikipedia

    https://en.wikipedia.org/wiki/HTTPS

    e. Hypertext Transfer Protocol Secure ( HTTPS) is an extension of the Hypertext Transfer Protocol (HTTP). It uses encryption for secure communication over a computer network, and is widely used on the Internet. [1] [2] In HTTPS, the communication protocol is encrypted using Transport Layer Security (TLS) or, formerly, Secure Sockets Layer (SSL).

  7. Online Certificate Status Protocol - Wikipedia

    en.wikipedia.org/wiki/Online_Certificate_Status...

    RFC 8954: OCSP Nonce Extension. The Online Certificate Status Protocol ( OCSP) is an Internet protocol used for obtaining the revocation status of an X.509 digital certificate. [2] It is described in RFC 6960 and is on the Internet standards track. It was created as an alternative to certificate revocation lists (CRL), specifically addressing ...

  8. HTTP Strict Transport Security - Wikipedia

    en.wikipedia.org/wiki/HTTP_Strict_Transport_Security

    HTTP Strict Transport Security. HTTP Strict Transport Security ( HSTS) is a policy mechanism that helps to protect websites against man-in-the-middle attacks such as protocol downgrade attacks [1] and cookie hijacking. It allows web servers to declare that web browsers (or other complying user agents) should automatically interact with it using ...

  9. Transport Layer Security - Wikipedia

    en.wikipedia.org/wiki/Transport_Layer_Security

    Transport Layer Security ( TLS) is a cryptographic protocol designed to provide communications security over a computer network. The protocol is widely used in applications such as email, instant messaging, and voice over IP, but its use in securing HTTPS remains the most publicly visible. The TLS protocol aims primarily to provide security ...

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