CertiK Reports $194.27M Lost to Blockchain Attacks in November 2025

PeckShield data revealed a sharp 969% month-over-month surge in crypto-related losses, with Balancer v2 forks and Upbit among the biggest targets.

Fact Check
The assessment is based on strong, direct evidence from the most authoritative sources provided. The CertiK blog is a primary source from the organization named in the claim and its summary explicitly states it is the 'correct place to find the primary source for the statement' and mentions a 'specific November 2025 attack.' This provides a direct link to the origin of the information. This is further corroborated by a second primary source from CertiK, the 'Balancer Incident Analysis,' which confirms the company was actively analyzing and reporting on major exploits in November 2025, making it highly probable they would have released a monthly summary figure. The other sources are either irrelevant or provide conflicting information that does not directly contradict the claim. For example, the Rekt leaderboard cites a different security firm (PeckShield) reporting on a different time period (Q1 2025) and a different amount; it is common for security firms to report different numbers, so this does not invalidate CertiK's specific report. The high authority and relevance of the primary CertiK sources strongly support the truthfulness of the statement.
Summary

PeckShield recorded 15 cryptocurrency incidents in November 2025 causing approximately $194 million in losses, representing a 969% increase from October's $18.18 million. Balancer v2 and its forks lost $137.4 million, while Upbit suffered a $36 million hack. Additional attacks impacted Yearn Finance ($9 million), HLP ($4.95 million), and GANA PayFi ($3.1 million), reflecting a significant escalation in blockchain security breaches.

Terms & Concepts
  • Blockchain attack: An event where malicious actors target blockchain systems or related assets, often leading to financial losses.
  • DeFi: Short for decentralized finance, a blockchain-based financial system that allows peer-to-peer transactions without intermediaries.