How safe is DeFi?

As someone considering investing in the world of decentralized finance, or DeFi, I'm naturally curious about its safety. With the promise of increased autonomy and transparency, it's tempting to dive in, but I've heard stories of hacks and scams. So, how SAFE is DeFi really? Are there measures in place to protect investors' funds and personal information? What are the potential risks I should be aware of before diving into this emerging financial landscape?