My attempt at explaining how the Kerberos authentication protocol works. See below for links to further reading and things I mentioned in the video: My kerberos attack videos: Kerberos spec: MS-KILE: Windows AcquireCredentialsHandle API: My kerberos blog post with diagrams: 00:00 Intro 01:45 What is kerberos? 03:30 Authentication process (simple) 07:55 Authentication process (in depth) 17:58 Attacks and vulnerabilities 25:22 Network messages/protocol 31:18 Demonstration and packet capture