How widespread is root certificate expiration among Internet users?
A. There is no impact on Microsoft browsers, which cover 72% of the market with the exception of Microsoft Internet Explorer 4.01 and 4.5 for Macintosh. VeriSign’s pending root certificate expiration (1/1/2000) is localised to a very small and rapidly decreasing percentage of Netscape users. Netscape and VeriSign estimate that only between 10-15% of today’s Netscape user base is currently affected (i.e. Netscape browser 4.05 or earlier). However, this population is rapidly decreasing, and is expected to quickly fall to less than 4% by 12/31/99 as Netscape users continue to upgrade their browsers. VeriSign’s most current root certificates are installed in each of the last seven Netscape browsers: 4.06, 4.07, 4.08, 4.5, 4.5.1, 4.6, 4.7. They will also continue to be be automatically included in all future browser releases. Anyone who upgrades this year from between 3.x and 4.x versions of Netscape will go to at least version 4.08, and thus be unaffected.
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