Richard Zhu, in plaid shirt, and Amat Cama, right, watch as they compete in the 2019 Pwn2Own contest with a zero-day exploit against the Microsoft Edge web browser. (Zero Day Initiative / Twitter) Mozilla Firefox, Microsoft Edge succumb in web browser competition at Pwn2Own The second day of Pwn2Own 2019 featured more successful attacks from the "Flouroacetate" team of Amat Cama and Richard Zhu. Mar 22, 2019 By Joe Warminsky