A seasoned medical device red team hacker with nearly a decade in the trenches, Alex Delifer (cheet) breaks stuff so others can sleep at night. He operates out of an unnamed medtech company, where he regularly tears through embedded systems, surgical robots, industrial controllers, APIs, and BIOS firmware like it’s target practice. A Biohacking Village Capture the Flag Champion at DEF CON, he’s known in some circles as the medical device testing sledgehammer—swinging hard, finding the flaws others miss, and leaving no UART unturned.