Liquid Network Suffers from a US$320 Million Bitcoin Hack

A Bitcoin linked blockchain has suffered one of the largest recent attacks on digital asset infrastructure, with about 4,000 Bitcoin worth roughly US$320 million taken from a wallet associated with Liquid Network.

Liquid Network said the incident affected its Liquid Federation wallet, which held about 4,200 Bitcoin before the attack. The network subsequently halted new transactions while federation members worked to investigate the breach and restore normal activity. The scale of the theft means roughly 95 percent of the Bitcoin in the wallet was drained, turning what might otherwise have been a technical security incident into a major test of confidence in the infrastructure surrounding cryptocurrency markets.

Liquid Network described the attackers as purported white hat hackers, referring to actors who exploit vulnerabilities with the stated intention of returning stolen assets, sometimes in exchange for a fee. That description does not remove the financial risk created by the breach, particularly while the stolen assets remain outside the network's immediate control.

The network said the Bitcoin was withdrawn through SideSwap, a settlement platform authorised to process transfers from Liquid. Liquid also said the relevant key had not been compromised, raising the possibility that the weakness was located elsewhere in the system rather than in a simple theft of private credentials.

Cybersecurity specialists have focused on the possibility of a flaw involving the creation of Liquid Bitcoin, known as L BTC. Preliminary evidence cited by cybersecurity executive Aneirin Flynn pointed toward a bug that may have allowed additional L BTC to be minted. If confirmed, such a weakness would raise questions not only about wallet security but also about the mechanisms used to validate digital assets and maintain the relationship between tokens and their underlying reserves.

The incident comes after a series of attacks that have kept cryptocurrency security under pressure. A digital asset lending platform linked to Crypto.com reportedly lost about US$6 million in an attack last week, while a breach involving the Coldcard Bitcoin wallet in August raised fresh questions about how investors should store digital assets. The frequency of such incidents is making security architecture an increasingly important consideration for exchanges, custodians and investors.

The latest attack also exposes an uncomfortable contradiction in the cryptocurrency industry. Blockchain technology is often promoted for its transparency and resilience, yet the systems built around blockchains can introduce centralised points of weakness. A network may rely on cryptographic principles that are difficult to break while still depending on wallets, validation mechanisms, bridges, settlement platforms and federation members that can become targets.