Justin Raisor (host) discusses the topic of XDR (Extended Detection and Response) in cybersecurity with guest Robert Markku, a principal technologist with Vectra AI. They delve into what XDR is, how it works, its advantages and importance in cybersecurity, and the different ways it can be implemented. They also discuss the role of AI in cybersecurity and how Vectra AI fits into the XDR framework.