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In an effort to protect customers, last week we released Security Advisory 2607712 along with a non-security update to add fraudulent DigiNotar certificates to the Windows Untrusted Certificate Store. Today, we are releasing another update (2616676)...

Hello everyone, As we do each month, we’re providing advanced notification on the release of five Important security bulletins, addressing 15 vulnerabilities, to help protect customers using Microsoft Windows and Office. As usual, the bulletin...

Today we’re updating Security Advisory 2607712, to announce that based on our investigation, we’ve deemed all DigiNotar certificates to be untrustworthy and have moved them to the Untrusted Certificate Store. Additionally, we have extended our...

This blog post was updated Sept. 5, 2011 below. Microsoft’s investigation into the scope and impact of the DigiNotar compromise has continued over the holiday weekend. We’ve now confirmed that spoofed certificates for *.microsoft.com and *...

Today we’re releasing Security Advisory 2607712, to address at least one fraudulent digital certificate issued by DigiNotar, a root certificate authority. DigiNotar has since revoked the digital certificate. This is not a Microsoft security...

Hello, Today we published the August Security Bulletin Webcast Questions & Answers page. We fielded six questions on various topics during the webcast, including bulletins released and the Malicious Software Removal Tool. There was one question that...

Hi everyone, Black Hat this year was really great. We spent a lot of time talking to people and getting new perspectives on the security landscape and of course, we announced the BlueHat Prize contest. The reaction to the contest was outstanding. In...

Hello all. It has been very nearly a week since our BlueHat Prize contest announcement at Black Hat. Now that everyone’s had some time to digest the basics, we’ve asked Senior Security Strategist and chief BlueHat Prize architect Katie Moussouris to...

Hello all. Before we look at next week’s bulletin release, we’d like to recommend – for those of you who missed it in the run-up to this year’s Black Hat conference – the third annual Microsoft Security Response Center Progress Report. Every year...

Protecting the general computing ecosystem is a really tough job, and given some of the media headlines, it’s easy to get discouraged and wallow in the problems. It seems like we’re constantly bombarded with statistics measuring the number of bugs...

Today, the MSRC released its third annual progress report highlighting advancements of key Microsoft programs designed to help prevent and defend against online threats. The Microsoft programs featured in this paper include the following: The...

Hello, Today we published the July Security Bulletin Webcast Questions & Answers page. We fielded thirteen questions on various topics during the webcast, including bulletins released, deployment tools, and update detection tools. There were two...