Cybersecurity | Cloud | DevelopmentDEF CON 31 – Azure B2C 0Day – An Exploit Chain from Public Keys to Microsoft Bug Bounty – John Novak January 5, 2025 video CONconference speakersDEFDEF CONDEFCONhacker conferencehackershackinghacking videosinformation securityinformation security conferencesecurity conferencesecurity research