🚨 Case Review | MetaMask Phishing Attack Leads to User Loss of $850,000
📌 Incident Overview
In September 2024, a MetaMask user clicked on a fake DeFi airdrop link and signed a malicious transaction on a phishing site, resulting in the loss of $850,000 in assets within 2 minutes.
🔍 Vulnerability Analysis
Traditional Cybersecurity: The attack exploited a 'Cross-Site Scripting' (XSS) vulnerability, allowing malicious scripts to steal users' wallet permissions.
Social Engineering: The fake interface of a well-known DeFi project induced users to take action.
Browser Extension Risks: Malicious plugins disguised as compliance tools altered transaction content.
🛡️ Our Recommendations:
1. Technical Measures
Deploy strict content security policies for front-end pages.
Use Subresource Integrity checks to prevent third-party scripts from being tampered with.
Conduct security audits on browser plugins.
2. User Education
Mandate employee participation in social engineering defense training.
Establish a phishing attack simulation testing mechanism.
Use multi-signature wallets to manage large assets.
3. Monitoring System
Deploy 24-hour on-chain anomaly transaction monitoring.
Establish a real-time warning system for malicious addresses.
💡 Key Insight
Web3 security must build a multidimensional defense system from the front end to the blockchain, and from technology to personnel, as traditional cybersecurity attacks rapidly infiltrate the Web3 domain.
