Is decentralized finance safe?

I'm curious, when it comes to decentralized finance, can we really say that it's safe? On one hand, the absence of a central authority overseeing transactions and operations certainly offers a level of autonomy and control that traditional financial systems lack. But on the other hand, with no central governing body, how can we ensure that transactions are secure and free from fraud? And what about the potential for cyberattacks and hacking? How do we protect our assets in this decentralized landscape? Is decentralized finance truly safe, or are there significant risks that we need to be aware of?