According to the H1 2026 Web3 Security Report, global blockchain security incidents reached 187, with attack frequency surging 107.7% year-on-year, resulting in total losses of approximately $1.39 billion. Ethereum, Solana, and Bitcoin networks were the hardest hit. DeFi projects and retail users were primary targets, with social engineering and smart contract vulnerabilities as main attack vectors. Major incidents like KelpDAO triggered cascading financial risks.
In the first half of 2026, the blockchain security landscape deteriorated sharply. According to the latest Web3 security report, a total of 187 security incidents occurred globally, marking a 107.7% surge in attack frequency year-over-year, with cumulative losses reaching approximately $1.39 billion. Ethereum, Solana, and Bitcoin networks were the hardest hit, while DeFi projects and ordinary users became primary targets. Social engineering attacks and smart contract vulnerabilities remained the two main causes. Major incidents such as the KelpDAO exploit triggered cascading financial risks, causing significant shocks to the market.
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