BigONE Exchange
Summary
BigONE is a Seychelles-registered centralized cryptocurrency exchange that launched globally in November 2017, evolving from Yunbi.com, a China-based exchange backed by Li Xiaolai's INBlockchain fund. In July 2025 the exchange suffered a $27 million supply-chain hack; simultaneously, blockchain investigator ZachXBT alleged the platform had processed at least $60 million in pig-butchering and romance-scam proceeds through a single deposit address over the prior seven months. The exchange operates without a license from major financial regulators (FCA, ASIC, CySEC) and carries a documented history of alleged wash trading, user complaints about frozen withdrawals, and tournament prize disputes.
Connected Entities
1 entities · 10 linked investigationsTimeline(10 events)
2017-06-24
The big.one domain is registered, laying groundwork for the global rebrand of Yunbi.com.
Cypherhunter entity profile2017-11-01
BigONE officially launches as a global cryptocurrency exchange, rebranding from Yunbi.com (INBlockchain / Li Xiaolai). Roger Ver (Bitcoin.com) is cited as an early backer and promoter.
NewsBTC press release2018-06-23
BigONE reports a 6,300,000% surge in BTC/USDT volume within three days, briefly reaching CoinMarketCap's top 3 by volume. Hacken.AI subsequently investigates and concludes the volumes are fabricated.
Hacken.AI investigation – Medium2018-12-01
Li Xiaolai, BigONE's founding backer, publicly announces retirement from crypto investing via Weibo.
Asia Crypto Today2019-05-01
Bitcointalk thread published alleging BigONE ran fake trading tournaments and withheld prize payments from winners.
Bitcointalk forum thread2024-12-01
ZachXBT identifies a single BigONE deposit address that had allegedly received over $60 million in pig-butchering and romance scam proceeds over the prior seven months.
Blockchain.news flash news2025-07-09
ZachXBT reports that a pig-butchering scam group opened a new BigONE Bitcoin deposit address and funneled approximately $4.5 million in scam proceeds through it within one week.
Blockchain.news flash news2025-07-16
BigONE suffers a $27 million supply-chain hack. Attackers compromise a developer's device and deploy malicious binaries that modify withdrawal-approval logic, draining hot wallets across Bitcoin, Ethereum, Tron, Solana, and BNB Smart Chain.
BleepingComputer2025-07-16
ZachXBT publicly criticizes BigONE following the hack, stating the exchange processed significant scam-related volumes and expressing no sympathy for the team.
The Defiant2025-07-17
BigONE pledges full user compensation from internal reserves and external borrowings; announces up to $8 million in recovery bounties; engages SlowMist for forensic investigation.
CoinTelegraphDecision Log
- hash: HRXtSJSYYjPXM16SJ3suCa1HtFwWJ3NYRYdfCotzBzfL
- hash: 2BoRcWoz5F6CGLKejsFWWH2gwg9G7oZBUdi2HXuy8aHe
- hash: F7MgfcYzc59ciGELZHnUVX2b7v9y65YfeppAHx1baskM
This investigation is cryptographically anchored to the Solana blockchain and source URLs are archived via the Internet Archive.
model: claude-sonnet-4-6
generated: 6/1/2026, 5:47:04 PM
last updated: 6/8/2026, 4:05:55 PM
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