Security Bulletin

During our investigation into the disclosure of confidential data shared with our Microsoft Active Protections Program (MAPP) partners, we determined that a member of the MAPP program, Hangzhou DPTech Technologies Co., Ltd., had breached our non...

Hello, Today we published the April Security Bulletin Webcast Questions & Answers page, and the slide deck presented in the webcast. We fielded 15 questions on various topics during the webcast, including bulletins released, deployment tools, and...

Hello, As you know, today is Update Tuesday. Before I go into the bulletin details, however, I wanted to let you know that today we’re notifying customers that Windows XP and Office 2003 will go out of support in April 2014. We understand that...

Hello, Today we’re releasing our advance notification for the April security bulletin release, which is scheduled for Tuesday, April 10. This month’s release includes 6 bulletins addressing 11 vulnerabilities in Microsoft Windows, Microsoft Office...

The entry window for the first annual BlueHat Prize closed at 11:59pm PDT on April 1. We’ve been eagerly awaiting a final entry count from the contest organizers, and senior security strategist Katie Moussouris has just posted that tally on the...

Nearly nine months after we announced the first annual BlueHat Prize competition for innovations in defensive security technologies, we’re just days away from the submission deadline. On the EcoStrat blog today, Senior Security Strategist Katie...

Hello, Today we published the March Security Bulletin Webcast Questions & Answers page. During the webcast, we fielded twelve questions focusing on MS12-020 (aka “the RDP update”). Two additional questions for MS12-022 regarding Microsoft Expression...

On March 15, we became aware of public proof-of-concept code that results in denial of service for the issue addressed by MS12-020, which we released Tuesday. We continue to watch the threat landscape and we are not aware of public proof-of-concept...

Hello. Today we’re releasing six security bulletins – one Critical-class, four Important and one Moderate – addressing seven issues in Microsoft Windows, Visual Studio, and Expression Design. We recommend that customers focus on MS12-020, our sole...

Hello. Today we’re releasing our advance notification for the March security bulletin release, which is scheduled for Tuesday, March 13. This month’s release includes six bulletins addressing seven vulnerabilities in Microsoft Windows, Visual Studio...

Hello, Today we published the February Security Bulletin Webcast Questions & Answers page. We fielded ten questions on various topics during the webcast, including bulletins released, deployment tools, and update detection tools. Many of the...

Ever wondered where Update Tuesday bulletins come from, or what it’s like around Microsoft when a serious information-security situation arises? Or wondered who precisely is responsible for getting your monthly bulletin releases out the door? Update...