Nothing is safe is crypto, people behind can exit scam, and it is open to the hackers. Of course, there's a lot of competition out there, that's why they are offering huge APY. So better yet DYOR. Or just stick to those yield farming that has somewhat established their reputation in the last couple of years. Big rewards=big risk. So if you are not a risk taker, then better stay out and go for other alternatives, IMHO.