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  2. Fix security certificate error messages in Internet Explorer

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

    Seeing security certificate errors when visiting certain websites? Learn how to remedy this issue in Internet Explorer. ... If a website's security certificate ...

  3. List of HTTP status codes - Wikipedia

    en.wikipedia.org/wiki/List_of_HTTP_status_codes

    This class of status code indicates the client must take additional action to complete the request. Many of these status codes are used in URL redirection. [2]A user agent may carry out the additional action with no user interaction only if the method used in the second request is GET or HEAD.

  4. Certificate revocation list - Wikipedia

    en.wikipedia.org/wiki/Certificate_revocation_list

    While all expired certificates are considered invalid, not all unexpired certificates should be valid. CRLs or other certificate validation techniques are a necessary part of any properly operated PKI, as mistakes in certificate vetting and key management are expected to occur in real world operations.

  5. Certificate revocation - Wikipedia

    en.wikipedia.org/wiki/Certificate_revocation

    Certificate revocation is "an important tool" for dealing with attacks and accidental compromises. RFC 9325 places a normative requirement on TLS implementations to have some means of distrusting certificates. [9]

  6. Add or disable 2-step verification for extra security - AOL Help

    help.aol.com/articles/2-step-verification...

    Sign in to your Account Security page. 2. Next to "2-Step Verification," click Turn on. 3. Select Phone number for your 2-step verification method. 4. Follow the on-screen prompts to complete the process. Sign in with 2-step for phone. 1. Sign in to your AOL account with your password. 2. Enter the verification code sent to your phone. 3. Click ...

  7. Firefox disabled all add-ons because a certificate expired ...

    www.aol.com/news/2019-05-03-firefox-extension...

    Many Firefox users around the world are browsing without their usual set of extensions after they suddenly stopped working earlier this evening. The event occurred as the clock rolled over on UTC ...

  8. Online Certificate Status Protocol - Wikipedia

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

    The OCSP responder uses the certificate serial number to look up the revocation status of Alice's certificate. The OCSP responder looks in a CA database that Carol maintains. In this scenario, Carol's CA database is the only trusted location where a compromise to Alice's certificate would be recorded.

  9. Public key certificate - Wikipedia

    en.wikipedia.org/wiki/Public_key_certificate

    The certificate provider signs the request, thus producing a public certificate. During web browsing, this public certificate is served to any web browser that connects to the web site and proves to the web browser that the provider believes it has issued a certificate to the owner of the web site.