Observed Signal · Sep 7, 2026 · Security Incident · Source: Trending Topics (DACH/CEE Innovation & Tech) · Impact: 3/5 · Sentiment: Negative
Liquid Network Bitcoin Sidechain Hit by $320M Exploit
The Liquid Network, a Bitcoin sidechain used by crypto exchanges, was hit by a $320 million exploit, with roughly 4,000 bitcoin withdrawn from its federation wallet. The network has been halted as bridge nodes were disabled and exchanges paused L-BTC deposits and withdrawals. The incident stems from a bug in the Elements software, which allows the creation of unbacked L-BTC. The attackers, claiming to be white-hat hackers, have offered to return most of the funds if the bug is patched. The event raises questions about the security of sidechains and bridges.
Significant security incident in the crypto ecosystem, but limited direct relevance to the advertising technology industry.
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Key Takeaways & Evidence Grounding
- Liquid Network lost roughly 4,000 bitcoin (about $320 million) due to an exploit.
- The network has been frozen, with bridge nodes disabled and exchanges pausing L-BTC transactions.
- The exploit was caused by a bug in the Elements software, allowing unbacked L-BTC to be created.
- The attackers claim to be white-hat hackers and have offered to return most funds if the bug is patched.
- The federation wallet previously held about 4,200 bitcoin; only about 197 remain.
Connected Companies & Entities
2 Entities mapped“The Block is a source for the article; the article links to The Block report....”
“A lending platform linked to Crypto.com lost around $6 million just last week....”
Ontology Mapping & Concepts
Related Market Signals & Shifts
Recent verified developments and strategic activity across this market segment.
Bitcoin Sidechain Liquid Network Hit by $320M Exploit
The Liquid Network, a Bitcoin sidechain operated by Blockstream, suffered a significant security breach in which attackers stole approximately 4,000 BTC (worth around $320 million) by exploiting a software vulnerability that allowed the exchange of unbacked L-BTC. The attackers, claiming to be white-hat hackers, offered to return most of the funds if Blockstream patched the bug. After the patch was applied, around 3,400 BTC were returned to the network's wallet, while about 598.5 BTC (worth ~$47 million) remained in the hackers' possession, possibly as an unplanned bug bounty. The vulnerability was traced to a caching flaw in Blockstream's Elements software, specifically in the Confidential Transactions validation process, which allowed counterfeit token creation. The federation's multisig and PAK mechanisms were not compromised. The network remains paused while security enhancements are implemented before a safe restart.
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Cryptocurrency exchange Bitget reported a hack involving unauthorized transfers from its hot and warm wallets, totaling approximately $351.6 million. CEO Gracy Chen suspects North Korean hackers based on IP address analysis, though attribution is not fully confirmed. The attackers breached a central backend system, forged transfer details, and initiated the exchange's authorized signature process without compromising private keys. Bitget has suspended withdrawals but trading continues, and its cold wallets remain unaffected. The company's Protection Fund, exceeding $465 million, is intended to cover the loss, supplemented by over $1 billion in equity. This incident echoes the February 2025 Bybit hack, also attributed to North Korean actors, which involved a compromised Safe{Wallet} developer machine and resulted in a $1.5 billion theft. Bitget had previously lent Bybit 40,000 ETH to help it recover from that attack.
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