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Computing > Support >  Library >  Safe Computing > Defenses > Authentication > PKI > FAQs >  

Why Can't I Use Internet Explorer on a Macintosh with PKI?

Internet Explorer for the Macintosh (all versions) does not include support for client PKI certificates. These versions of Internet Explorer generate an error if you try to connect to a Web site that has SSLVerifyClient set to Optional. Internet Explorer displays the alert, "Security Failure. Personal certificate required." If you are using a Macintosh, you should use Safari, Firefox, or Netscape.

As Internet Explorer has not been developed for the Macintosh for several years, we do not expect this to change.

08/29/08

Last Updated: 9/1/08