How to Prepare for Kerberos RC4 Retirement
Microsoft is retiring default RC4 use in Kerberos through a staged rollout in 2026. Organizations must update their encryption settings or risk authentication failures in legacy applications. Swipe through our carousel for the key 2026 changes and the actions you can take.
For more information, download our one-pager that dives deeper into what’s changing, when, and what you need to do.








[RESOURCE AUTHOR]
Conrad Lintow
For over 25 years, Conrad Lintow has advised leading organizations from financial and other sectors on their most important IT security concerns. He maintains a broad knowledge base that enables him to solve complex challenges for clients. Conrad specializes in enterprise architecture, security, Active Directory, Directory Migrations, and Microsoft Entra ID.


