Web3 Security: Building Strong Defenses from the Ground Up

In today's thriving Web3 environment, we cannot ignore a key issue: the potential threat of traditional network security vulnerabilities to the Web3 ecosystem. While the industry is currently more focused on on-chain security and the security of the blockchain ecosystem itself, there is still a lack of awareness regarding system-level, browser, and mobile device vulnerabilities.

In fact, Web3 is built on the infrastructure of Web2. If there are security vulnerabilities at the base level of Web2, it could deal a devastating blow to the entire Web3 ecosystem, directly threatening the security of user assets. For example, vulnerabilities in browsers or mobile devices could steal users' digital assets without their knowledge.

In recent years, there have been multiple real cases of cryptocurrency theft exploiting Web2 vulnerabilities. These incidents involve various aspects such as Bitcoin ATMs, Chrome browsers, Microsoft Word, and Android systems, clearly demonstrating the significant threat that Web2 vulnerabilities pose to digital assets. This not only affects individual users but can also severely impact exchanges, asset custodians, and others.

Therefore, we have reason to believe that without the underlying security of Web2, the security of the Web3 domain cannot be truly guaranteed. Industry experts believe that Web3 security cannot rely solely on single code audits; it also requires more security measures, such as real-time detection and response to malicious transactions.

Security technology is directly related to user assets and is an important indicator of the level of a security company. As the ancient saying goes, "Without knowing the attack, how can we know the defense?" Therefore, in-depth research on Web2 vulnerabilities is crucial for comprehensively improving Web3 security protection capabilities.

Some security teams have made significant achievements in this field, discovering multiple high-risk vulnerabilities involving products from well-known technology companies, as well as security risks in several mainstream blockchain ecosystems. These findings cover various aspects, from HTTP privilege escalation, DHCP service remote code execution to Chrome v8 engine vulnerabilities.

Looking ahead, the Web3 security field requires more cross-industry collaboration. Whether it is traditional internet companies, blockchain project parties, or security research institutions, they should work together to build a safer Web3 ecosystem. Only by starting from the ground up can a solid security foundation be laid for the long-term development of Web3.