From January to early December this year, the amount stolen in cryptocurrency thefts exceeded $3.41 billion, surpassing last year's $3.38 billion. Among them, the $1.5 billion single hack attack on Bybit accounted for 44% of the total. A report by Chainalysis indicates a significant increase in cases of personal wallet and private key leaks, rising from 7.3% of the stolen amount in 2022 to 44% in 2024, involving 158,000 cases. Although DeFi security has improved and threat response times have accelerated, centralized services remain very vulnerable, accounting for 88% of theft cases in the first quarter of 2025. Hackers associated with North Korea have set a record, expected to steal at least $2.02 billion from 2025, primarily through infiltration methods and laundering via Chinese services.