TechFlow, November 30 — According to blockchain security firm CertiK's monthly security report published on X, various attacks, exploits, and scams in November 2025 resulted in total losses of approximately $172.4 million, with around $45 million frozen or recovered, leaving net losses at about $127 million.
The report states that the largest incident in November was the Balancer hack ($113 million), followed by Upbit ($29.87 million) and Bex ($12.4 million). By incident type, code vulnerabilities caused the highest losses ($130 million), followed by wallet compromises ($33.05 million). In terms of sectors, DeFi projects suffered the most severe losses, totaling $134.9 million.
CertiK noted that although some funds have been successfully frozen or returned, the overall volume of security incidents remains high this month, urging users and project teams to strengthen smart contract audits, key management, and risk controls during the year-end period.
