User-to-User Authentication: Down the Rabbit Hole – Part 1
specterops.io | research
Summary
A deep dive into Kerberos User-to-User (U2U) authentication and the primitives behind UnPAC-the-Hash, ADCS and shadow credentials.
- Published
- Collected
--- id: 9411 title: "User-to-User Authentication: Down the Rabbit Hole – Part 1" source_domain: specterops.io source_url: "https://specterops.io/blog/2026/06/09/user-to-user-authentication-down-the-rabbit-hole-part-1/" published_at: "2026-06-09T16:00:00Z" phying_url: "https://phying.com/item/9411" lang: en --- # User-to-User Authentication: Down the Rabbit Hole – Part 1 ## Summary A deep dive into Kerberos User-to-User (U2U) authentication and the primitives behind UnPAC-the-Hash, ADCS and shadow credentials. ## Intelligence Metadata - **Sources:** specterops.io - **Published:** 2026-06-09T16:00:00Z - **Original:** https://specterops.io/blog/2026/06/09/user-to-user-authentication-down-the-rabbit-hole-part-1/ - **Phying News:** https://phying.com/item/9411