Flow Blockchain Backs Away From Full Rollback After $3.9M Exploit Sparks Partner Backlash

On December 27, 2025, Flow Blockchain halted its network after an attacker exploited a vulnerability in its execution layer and moved about $3.9 million through several cross-chain bridges. Core developers first proposed rolling the chain back to an earlier checkpoint, drawing sharp criticism from partners who said they were not consulted and warning of complex balance issues. By December 29, 2025, the Flow Foundation replaced the global rollback plan with a targeted recovery approach that burns illicitly created tokens, keeps most user activity intact, and resumes the network in phased stages.