Microsoft, Mozilla and Opera Software today joined Google in revoking rogue digital certificates that had been issued by a subordinate certificate authority (CA) of France’s cybersecurity agency.
Google revoked the certificates for users of its Chrome browser on Saturday after a four-day investigation. Microsoft, Mozilla and Opera Software followed suit on Monday.
In a security advisory, Microsoft said it had released an update to most versions of Windows — including Windows Phone 8, Windows 8.1 and Windows Server 2012 R2 — that revoked the pertinent certificates. Unlike other browser makers, Microsoft records trusted digital certificates in Windows, not in its Internet Explorer (IE) browser.