Social engineering attacks have become a major method of attack in the cryptocurrency field. Recent incidents such as the Ledger npm vulnerability exploitation and phishing activities related to North Korea indicate that human error, rather than code flaws, is the root cause of most security vulnerabilities. The irreversibility of blockchain transactions exacerbates these risks, making simple mistakes potentially catastrophic. Experts point out that in order to address this growing threat, there is an urgent need to systematically enforce operational security standards, including device management and comprehensive training, especially as artificial intelligence tools make large-scale, personalized phishing attacks more efficient.