Every story we've covered involving sidechain-security.
Approximately 4,000 BTC worth $320 million was withdrawn from Blockstream's Liquid sidechain federation wallet on Sunday, with the actors identifying themselves as white-hat hackers through on-chain messages. The withdrawal exploited a bug in Elements software rather than a compromised key, and the parties have since engaged in PGP-signed communications negotiating the return of the funds conditional on patching the vulnerability.
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