OKX DEX

2023-12-12

OKX DEX proxy admin private key allegedly leaked; attacker upgrades DEX Proxy contract to malicious implementation and begins draining user-approved token balances via claimTokens function. Approximately $2.7 million stolen across multiple wallets.

2023-12-12

OKX publicly acknowledges exploit, describes affected contract as an 'abandoned market maker contract,' removes compromised proxy from trusted list, and commits to reimburse all affected users.

2024-01-23

OKB token suffers a flash crash with a sudden, unexplained price drop, raising market manipulation concerns.

2024-01-01

Malta MFSA settles with OKCoin Europe for €304,000 fine; OKX agrees to hire independent compliance reviewer.

2024-02-24

OKcoin (OKX's U.S. arm) receives a CFTC subpoena related to suspected fraud and unlawful conduct in digital asset transactions.

2025-01-01

OKX receives a MiCA license from European regulators, allowing compliant operation across EU markets.

2025-02-24

OKX parent Aux Cayes FinTech Co. Ltd. pleads guilty and settles with U.S. DOJ for $504 million — $420.3 million forfeiture plus $84.4 million fine — for operating an unlicensed money-transmitting business and facilitating $5 billion+ in suspicious transactions. Three-year compliance monitor accepted.

2025-03-17

OKX suspends its DEX aggregator service after detecting Lazarus Group exploitation; Bybit CEO confirms approximately $100 million of the $1.5 billion Bybit hack was laundered through OKX Web3. European regulators (Austria, Croatia) open MiCA jurisdiction inquiry.

2025-04-01

Malta FIAU issues €1.1 million fine to OKCoin Europe for 'serious and systematic' AML breaches found during April 2023 on-site examination, including deficient customer risk assessments and inadequate methodology for high-risk asset categories.