SlowMist's security team issued an alert on December 3 regarding a phishing attack where a user's account Owner permission was transferred, resulting in over $3 million in stolen assets and approximately $2 million trapped in DeFi protocols. The attack replaced the victim's core Owner permission rather than exploiting traditional authorization theft, rendering the user unable to transfer funds, revoke permissions, or operate DeFi assets despite funds appearing intact. Attackers exploited two scenarios: carefully crafted transactions showed no fund changes during wallet simulation, and users unfamiliar with Solana's ownership modification feature signed malicious requests. SlowMist advises users to verify whether authorization signatures contain high-risk operations such as Owner permission modifications.

Binance Alpha will open its airdrop claim function at 21:00 UTC+8 on Dec. 3, BlockBeats reports. Users holding at least 242 Alpha points can claim tokens on a first-come, first-served basis. The claim window will remain active until the airdrop pool is fully distributed or the campaign concludes.

Address 0xFC78 erased over $1.78 million in accumulated profits and lost an additional $117,000 in principal across two consecutive losing trades, on-chain data show. The trader then opened new short positions totaling approximately $33.4 million: 200 BTC ($18.75 million) with 30x leverage and 5,000 ETH ($15.26 million) with 20x leverage, lookonchain reported on December 3. Liquidation prices are set at $94,721.61 for BTC and $3,229.41 for ETH.

Binance founder Changpeng Zhao congratulated Yi He on her appointment as Co-CEO on Dec. 3, BlockBeats reports. CZ said Yi He should have held the CEO position from the company's inception eight years ago. Binance will embark on a more exciting journey under the leadership of two complementary leaders, he added.

Binance appointed co-founder He Yi as Co-Chief Executive Officer on Dec. 3, the exchange announced at Binance Blockchain Week. Co-CEO Richard Teng said He Yi has been integral to core management since the company's founding, with her user-centric approach shaping the platform's vision and business strategy. He Yi said she is honored to work with Teng, citing his decades of experience in regulated financial markets and his role as an early financial regulator in crypto, as the exchange continues global expansion.

Huionepay suspended user withdrawals after processing its final small withdrawal request on December 1 at 1:00 PM UTC+8, leaving only 990,000 USDT across its on-chain addresses as of December 2, 2025, security firm Bitrace reports. The payment platform's daily USDT outflows declined from a peak of 41.83 million at the beginning of the month to 7.17 million on November 30, with all Ethereum network operations depleted by early November and Tron network activities gradually winding down through multiple fund consolidations on November 3, 7, 17, 19, and 24. Huione Group announced the suspension as a phased repayment arrangement, citing hundreds of thousands of users withdrawing funds simultaneously due to recent external market conditions.

Japan's 30-year government bond yield rose 5 basis points to 3.425% on Dec. 3, hitting an all-time high, Jin10 reports. The increase marks a continuation of rising long-term borrowing costs for the country.

Sonnet Biotherapeutics shareholders approved a business combination with Hyperliquid Strategies on Dec. 2, market reports show. Hyperliquid Strategies previously announced plans to raise up to $1 billion to purchase HYPE and other assets.