Researchers have managed to hack the Samsung Galaxy S8, the iPhone 7 and the Huawei Mate 9 Pro on the first day of the Mobile Pwn2Own 2017 competition taking place alongside the PacSec conference in Tokyo, Japan.

The prize pool for the event organized by Trend Micro’s Zero Day Initiative (ZDI) exceeds $500,000 and participants have already earned a significant chunk on the first day.