Billy Hoffman

Billy Hoffman is Field CTO at IONIX, where he works with CISOs and security teams on attack surface discovery, exposure management, and threat intelligence operationalization. He has spent more than two decades in offensive and applied security research, beginning at SPI Dynamics where he led web application security research before the firm was acquired by HP. He subsequently managed HP's Web Security Research Group, then founded Zoompf, a web performance and security startup acquired by Rigor, where he served as CTO. He is co-author of Ajax Security (Addison-Wesley), one of the earliest definitive guides to Web 2.0 application security, and has presented research at Black Hat, RSA Conference, and Shmoocon. He writes on attack surface management, supply chain risk, threat intelligence, and vulnerability research.