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Microsoft addresses App Installer abuse

Thursday, December 28, 2023

28 October 2024 Update Microsoft disabled the ms-appinstaller URI scheme handler by default in App Installer on 28 December 2023 as a security response to protect customers from attackers’ evolving techniques against previous safeguards for CVE-2021-43890. Microsoft is pleased to announce that we have introduced new safeguards to the ms-appinstaller URI scheme handler by default in version 1.

Updates to the Windows Insider Preview Bounty Program

Friday, July 24, 2020

Partnering with the research community is an important part of Microsoft’s holistic approach to defending against security threats. Bounty programs are one part of this partnership, designed to encourage and reward vulnerability research focused on the highest impact to customer security. The Windows Insider Preview (WIP) Bounty Program is a key program for Microsoft and researchers.

August 2019 Security Updates

Tuesday, August 13, 2019

We have released the August security updates to provide additional protections against malicious attackers. As a best practice, we encourage customers to turn on automatic updates. More information about this month’s security updates can be found in the Security Update Guide. As a reminder, Windows 7 and Windows Server 2008 R2 will be out of extended support and no longer receiving updates as of January 14, 2020.