certificate authorities

  1. Windows 11 Release Preview: KB5065789 fixes 0x80070002, DRM playback, and CRL partitioning

    Microsoft has quietly shipped two companion Release Preview builds — Build 26100.6718 (24H2) and Build 26200.6718 (25H2) — as part of the small cumulative package KB5065789, addressing a set of high‑impact regressions (notably the persistent 0x80070002 update failure and DRM playback breakage...
  2. Microsoft's Enhanced CA Handling in Application Control for Business: Simplifying Trust Transitions

    The landscape of enterprise security is continually shaped by the challenge of maintaining trust in a rapidly evolving certificate ecosystem. As Windows environments become even more integral to critical business operations, Microsoft’s Application Control for Business—previously known as...
  3. Microsoft ACfB's Enhanced CA Handling Boosts Windows Security

    Microsoft's Application Control for Business (ACfB), formerly known as Windows Defender Application Control (WDAC), has introduced a significant enhancement in its certificate authority (CA) handling logic. This update aims to bolster security by refining how digital certificates are managed...
  4. 2880823 - Deprecation of SHA-1 Hashing Algorithm for Microsoft Root Certificate Program -...

    Revision Note: V2.0 (May 18, 2016): Advisory updated to provide links to the current information regarding the use of the SHA1 hashing algorithm for the purposes of SSL and code signing. For more information, see Windows Enforcement of Authenticode Code Signing and Timestamping. Summary...
  5. 3123479 - Deprecation of SHA-1 Hashing Algorithm for Microsoft Root Certificate Program -...

    Revision Note: V1.0 (January 12, 2016): Advisory published. Summary: Microsoft is announcing a policy change to the Microsoft Root Certificate Program. The new policy no longer allows root certificate authorities to issue X.509 certificates using the SHA-1 hashing algorithm for the purposes of...
  6. 3123479 - Deprecation of SHA-1 Hashing Algorithm for Microsoft Root Certificate Program -...

    Revision Note: V1.0 (January 12, 2016): Advisory published. Summary: Microsoft is announcing a policy change to the Microsoft Root Certificate Program. The new policy no longer allows root certificate authorities to issue X.509 certificates using the SHA-1 hashing algorithm for the purposes of...
  7. 2982792 - Improperly Issued Digital Certificates Could Allow Spoofing - Version: 1.0

    Revision Note: V1.0 (July 10, 2014): Advisory published. Summary: Microsoft is aware of improperly issued SSL certificates that could be used in attempts to spoof content, perform phishing attacks, or perform man-in-the-middle attacks. The SSL certificates were improperly issued by the National...
  8. Microsoft Security Advisory (2728973): Unauthorized Digital Certificates Could Allow Spoofing...

    Revision Note: V1.2 (September 5, 2012): Corrected the common name for the "CN=Microsoft Online Svcs BPOS APAC CA4" certificate issued by Microsoft Services PCA. Summary: Microsoft is aware of Microsoft certificate authorities that are outside our recommended secure storage practices. Upon a...
  9. Windows 7 How to obtain and install an SSL/TLS certificate, for free

    http://arstechnica.com/security/news/2009/12/how-to-get-set-with-a-secure-sertificate-for-free.ars Anyone operating a server on any scale should want a digital certificate to encrypt data between clients and services, whether for personal, office, or public use. Ars tells you how to obtain and...