During DEF CON 28 Safe Mode I have spoken at the DEF CON Groups VR Village, with a talk called Tactical Adversary: building a practical internal red team.
DEF CON was online that year, so the village ran in a virtual world, avatars and all. The talk introduced IRTOF, my framework for building an internal red team step by step, and how a small team can start running adversary simulation inside its own organisation.