Flow validators deploy fix, prepare for network restoration after security breach
Key TakeawaysThe…
— Flow.com (@flow_blockchain) December 28, 2025
The incident occurred on December 27, targeting a vulnerability in its execution layer. The attacker moved assets off-network primarily through bridges to Ethereum before validators halted the network shortly, preventing further unauthorized transactions.
According to the Flow Foundation, the vulnerability has been isolated, law enforcement is engaged, and user funds held before the incident remain intact.
Validators have restored the network to a pre-exploit checkpoint and brought it back online in read-only mode while ecosystem partners synchronize systems. Transactions remain paused pending final coordination.
Once the coordination is complete, the network is expected to reopen. A full technical post-mortem remains scheduled for within 72 hours.
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