Blockstream's Liquid Bitcoin Network Halted After $320 Million Withdrawal, Sender Claims to Be a 'White Hat'
Roughly 4,000 BTC, about $320 million, moved out of the Liquid Network's federation wallet on Sunday, September 6, 2026, dropping its reserve from roughly 4,200 BTC to 207 BTC. Blockstream halted the sidechain, says no signing keys were compromised, and is trying to contact whoever sent an on-chain message calling themselves a white hat.