Liquid Network, a bitcoin sidechain, has announced that its reserves are once again fully backed by bitcoin. The announcement follows an exploit that took place in September and was reported to involve $320 million.
According to wire reports, the money used to restore the backing came from Blockstream, the company behind the network. Coverage of the announcement describes the move as closing the shortfall left by the incident, so that the assets circulating on the sidechain are again matched by bitcoin held in reserve.
A sidechain of this kind runs alongside the main bitcoin blockchain and lets users move bitcoin onto it in a wrapped form. The wrapped tokens are meant to be redeemable one for one against the bitcoin held in reserve. Full backing is therefore the central measure of trust in such a system, and a shortfall in reserves raises doubts about whether every token can be redeemed.
The reports say the restoration came about two months after the exploit. Blockstream CEO Adam Back said the network's defenses have since been hardened, though the material reviewed by FXMARE does not give technical details of the changes or of how the exploit was carried out.
Back also cautioned developers against placing blind trust in fixes suggested by artificial intelligence. The reports present this as a warning about relying on AI-generated code suggestions when working on security-sensitive software, and they do not provide further specifics on how it relates to the incident.
The supplied reporting does not state details such as the cause of the exploit, the precise amount Blockstream contributed, or any further steps planned for the network, so those points are not addressed here.
Why it matters for traders
Backing of a bitcoin sidechain is what lets holders of its tokens redeem them for real bitcoin, so confirmation that reserves are whole again addresses a core trust question after a large exploit. The episode also illustrates the security risks facing cross-chain and sidechain infrastructure in crypto markets. Back's remark on AI-suggested fixes adds to the discussion of how software in this sector is developed and secured.