In the blockchain world, many security incidents in projects are actually due to the same pitfall—incorrect implementation of basic cryptography.

Random number generation being too arbitrary, vulnerabilities in signature verification logic, incorrect choice of hash functions, improper configuration of encryption modes... these seemingly fundamental issues are often the root causes of major security events. The problem isn't about some mysterious or advanced attack methods, but rather these "small details" being mishandled.

From DeFi contracts to wallet applications, and even data storage layers, you'll find that many projects have stepped into pitfalls in their use of basic cryptography. Some teams even lack sufficient awareness of these risk points, leading to problems only being exposed after deployment.

Ultimately, it's not about mastering complex cryptography theories, but about solidifying the basics at the implementation level. Strengthening the team's security audit awareness, establishing development standards, and conducting regular security reviews are even more important. After all, defending the most fundamental lines is the first step to Web3 security.