The latest data is shocking—by the first half of 2025, the scale of crypto asset theft has exceeded $2.1 billion. In just half a year, at least 75 major attack incidents have caused this huge loss, almost equal to the total stolen amount for the entire year of 2024. Behind these figures reflects a reality: the security gap in the DeFi ecosystem is widening.

Looking at the flow of stolen funds, vulnerabilities at the infrastructure level are the most deadly—events such as private key leaks and mnemonic phrase breaches account for over 80% of stolen funds. Although protocol vulnerabilities make up a smaller proportion (about 12%), their destructive power should not be underestimated, especially in decentralized exchanges and lending protocols, where the complexity of contract design often becomes the breach point for attacks.

Interestingly, global regulatory attitudes are shifting. The release of Hong Kong’s Digital Asset Policy Declaration 2.0 and the advancement of the US Stablecoin Bill—these measures mark the industry’s move from the gray area toward normalized regulation. Stablecoins and RWA (Real World Assets) have become new focal points of policy attention. This shift demands stricter on-chain settlement technology: security flaws in cross-chain bridges, logical vulnerabilities in smart contracts, single points of failure in private key management—every link must be tightly secured.

To truly reinforce defenses, the industry needs unified code auditing standards and real-time dynamic monitoring mechanisms. This is not only a technical issue but also a litmus test for the health of the ecosystem.