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Security/Hacker

News linked to both this project and an event.

Liquid Network white hat hacker returns 3,400 BTC, keeps about 598 BTC as bounty

According to on-chain monitoring by analyst PeckShield (@PeckShieldAlert), the Liquid Network was targeted by white-hat hackers. Approximately 4,000 BTC (roughly $320 million) were transferred from a Liquid Federation wallet. The funds were consolidated into address bc1ql4mfu6aundtkksxklfajs2h3t9nzcd6gyqjlte, accompanied by an on-chain message: "We are white hats, please contact us on-chain." Subsequently, the hackers completed on-chain negotiations with Blockstream, returning 3,400 BTC (approximately $315 million, or 85% of the total) while retaining around 598.5 BTC (about $47.38 million) as a bug bounty.

Blockstream notifies white hat hackers that vulnerability has been fixed, approximately 4,000 BTC pending return

Odaily News: Blockstream has notified white hat hackers that the vulnerability fix is complete and the approximately 4,000 BTC can be safely returned. The hacker who previously withdrew funds from the Liquid network expressed willingness to return them, but requested that the vulnerability be fixed first. Both parties have been negotiating publicly through Bitcoin OP_RETURN messages.The hacker initially proposed returning "most" of the BTC, but later changed their stance, demanding that the vulnerability be fixed first: "Ensure every node has been patched, and once the fix is confirmed, we will securely return the funds." The hacker also sent encrypted vulnerability details to Blockstream. About two hours ago, Blockstream responded via a PGP-signed OP_RETURN message stating that nodes have been patched. Currently, 3,998.5 BTC remain under the hacker's control.

After fixing the vulnerability, Liquid's white hat hacker said they would return most of the 4,000 BTC

According to Odaily, monitoring by Galaxy's Head of Research revealed that Liquid's white hat hacker stated they would return most of the 4,000 BTC after the Liquid Network vulnerability is patched. The hacker communicated with Blockstream through OP_RETURN messages and PGP-encrypted text: In block 965,822, a Blockstream address sent 1,000 satoshis with the message "Please contact the security team via the Blockstream website"; in block 965,865, the hacker sent an encrypted message to their own key, accompanied by a detached PGP signature that can be verified using the key published by Blockstream; in block 965,869, the hacker sent 1,000 satoshis to the Liquid federation peg-in wallet via a self-spend transaction with the message "Can we return the majority of the funds to the federation address?"; in block 965,875, the hacker conducted another self-spend transaction, sending 1,000 satoshis to the federation peg-in wallet and leaving an OP_RETURN message: "Please fix the vulnerability first. As of the latest commit, there is risk on-chain. Please ensure every node completes the patch update. Once the fix is confirmed, we will securely transfer the funds back." Relevant technical details were encrypted via PGP messages to the key published by Blockstream, readable only by Blockstream.

White-Hat Hacker Withdraws Approximately 4,000 BTC from Liquid Network; Side Chain Suspends Operations

According to an announcement from the official Liquid Network X account (@Liquid_BTC), a suspected whitehat hacker withdrew approximately 4,000 BTC worth around $320 million from a Liquid Federation wallet using a SideSwap PAK (Peg-out Authorization Key). The official statement indicated that the key itself was not leaked, and the Blockstream team is attempting to contact the party through on-chain signed messages. Following the incident, exchanges have paused or are about to pause LBTC deposit and withdrawal services. Bridge nodes have been temporarily shut down, and the Liquid sidechain is currently suspended, unable to submit new transactions. Officials emphasized that other Liquid assets such as USDT, DePix, and RWA remain unaffected by this incident, while Federation members are actively working to resolve the issue to restore normal network operations as soon as possible.

Approximately 4,000 BTC transferred in a single transaction linked to Liquid Network, with an on-chain message calling it a "white hat" operation

Odaily News: According to Bitcoin News monitoring, out of 4,200 BTC associated with a peg-out transaction on the Liquid Network, approximately 4,000 BTC appear to have been moved simultaneously. A subsequent transaction included an OP_RETURN message stating: "We are white hats, please contact us on-chain." It remains unclear what the nature of this transaction is, and whether the funds were moved through an exploit.

ether.fi selects Nexus Mutual to provide slashing coverage for up to 15,000 ETH

: On-chain digital asset management neobank ether.fi has selected Nexus Mutual to provide ETH slashing coverage, covering slashing penalties for its validators up to 15,000 ETH. ether.fi stated that it operates a large-scale validator set on Ethereum, and slashing is a tail risk. This coverage is used to cover validator losses, with a scale exceeding the total historical ETH slashing losses. ether.fi currently manages over $6 billion in assets across products such as Cash, Stake, and Liquid. Since 2019, Nexus Mutual has provided over $7 billion in coverage for smart contract attacks, slashing, and other digital asset risks. (Decrypt)

Yi Lihua: In a bear market, preserving principal should be the top priority; take-profit and stop-loss orders must be strictly enforced.

Liquid Capital founder Yi Lihua posted on X, stating that preserving principal is crucial during bear markets. He pointed out that on-chain theft incidents occur frequently, and ignoring risks solely to chase a few percentage points of returns could result in principal loss. JackYi emphasized that all investments carry risk—including holding funds on exchanges or participating in wealth management products and mining. He stressed that the top priority right now is setting take-profit and stop-loss levels, and proactively planning contingency measures for worst-case scenarios to avoid losing principal before the bull market arrives.