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  • Kerberos, Certificate Mapping and What’s Next

    This month we unpacked Microsoft’s latest updates shaking up authentication and certificate management — including the recent Kerberos vulnerability fix (CVE-2025-26647), changes to Strong Certificate Mapping, and the long-awaited arrival of CRL partitioning. 

    Watch the full recording on-demand below.

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Description

Microsoft’s recent Kerberos Authentication update (CVE-2025-26647) and ongoing changes to Strong Certificate Mapping are creating new challenges for PKI environments. In this milestone 50th PKI Solutions webinar, we’ll break down what each update means, how they interact in real-world deployments, and the steps organizations can take to identify and resolve related issues. We’ll also review Microsoft’s latest certificate mapping enhancements and discuss their impact on authentication and identity management. In addition, we’ll share some of the more unusual PKI behaviors we’ve encountered recently, including cases involving nCipher HSMs and other field discoveries. We’ll wrap up with time for questions and discussion to help you navigate these evolving updates with confidence.

 

Webinar Recap

The discussion highlighted how these updates are affecting real-world PKI environments — from authentication failures tied to smart card logons and YubiKeys, to new methods for mapping certificates in Active Directory. We also examined why Microsoft’s patch behavior is shifting toward newer OS versions and what that means for organizations still running older systems. 

Beyond the technical deep dive, the session featured insights into emerging PKI challenges, field discoveries involving nCipher HSMs, and even a candid take on how AI tools are (and aren’t) ready to assist with PKI troubleshooting. 

Curious about what these updates mean for your environment — and how to prepare for what’s next? 

Watch the full recording to see what’s changing, what to watch for, and how to stay ahead of Microsoft’s evolving authentication landscape. 

Presenters

Jake Grandlienard

Managing PKI Consultant

Jake Grandlienard brings more than 20 years of industry experience as a senior level engineer. He has spent the past 10 years designing, leading, and training clients in Public Key Infrastructure (PKI) implementations for medium to enterprise-scale Fortune 500 companies. He specializes in PKI implementations of Microsoft-based identity solutions, including Microsoft Active Directory Certificate Services (ADCS) as well as integration with other security and identity management technologies. Jake is a subject matter expert in PKI, mobile device management software, smart card management software, and Hardware Security Module (HSM) integration.

 

Alex Bok

Director of Operations

Alex Bok is an operations strategist who specializes in building scalable, efficient systems that drive growth and improve organizational performance. She brings expertise in aligning teams, optimizing resources, and integrating business processes to deliver measurable results. At PKI Solutions, Alex bridges strategy and execution, translating complex operational challenges into clear, actionable solutions that empower customers, enhance their experience, and help them achieve lasting success.