DiscoverBlue SecurityRC4 Deprecated, Are passkeys still an issue?
RC4 Deprecated, Are passkeys still an issue?

RC4 Deprecated, Are passkeys still an issue?

Update: 2026-01-06
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Summary

In this episode of the Blue Security Podcast, hosts Andy and Adam discuss significant updates in Microsoft's security protocols, particularly regarding Kerbroasting and the transition from RC4 to AES encryption. They delve into the challenges surrounding the adoption of passkeys, emphasizing the need for user education and the importance of credential managers. The conversation highlights the friction users face when transitioning from traditional passwords to passkeys and the implications of vendor lock-in. The hosts conclude with thoughts on the future of digital security and the necessity for individuals to take control of their credential management.

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YouTube Video Link: https://youtu.be/REBYRjYoEbM

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Documentation:

https://www.microsoft.com/en-us/windows-server/blog/2025/12/03/beyond-rc4-for-windows-authentication

https://fy.blackhats.net.au/blog/2025-12-17-yep-passkeys-still-have-problems/

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Andy Jaw

Bluesky: https://bsky.app/profile/ajawzero.com

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Adam Brewer

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RC4 Deprecated, Are passkeys still an issue?

RC4 Deprecated, Are passkeys still an issue?

Andy Jaw & Adam Brewer