After the hacker came, my wallet was empty.Ignorance period：At first, I stepped into the blockchain world with baby-like curiosity. It only happened for two months. I originally wanted to make a profit in the secondary market through the contract. Then I changed my mind because I found another attractive market, NFT. The NFT market is so interesting that a picture can be of great value because of people's consensus. What we need to grasp is the pre-judgment before the project launch and ...