Bitcoin's year-to-date return for February is currently -17.36%, with a historical average return of 10.94%.

Brazilian cryptocurrency exchange Mercado Bitcoin announced in a post that it detected a security incident on its platform in the early hours of today, has activated security protocols and temporarily suspended service access. The platform guarantees customers will not lose any assets as a result of the incident. The total assets involved are approximately $38 million. Following rapid collaboration with the crypto community and strategic partners including Tether, Circle, Paxos, BRL1 and Chainalysis, $11 million has been frozen, and containment operations are ongoing. Services will be restored once sufficient security conditions are in place, with the relevant timeline announced exclusively via official channels.

According to Bitget market data, South Korea's KOSPI index opened down 2.46%, with SK Hynix and Samsung Electronics both falling more than 4%.

U.S. Securities and Exchange Commission (SEC) Division of Corporation Finance has updated its "Frequently Asked Questions Regarding the Application of Federal Securities Laws to Certain Digital Assets and Transactions", with the latest revision date being November 2. This FAQ reflects the views of SEC staff, not SEC rules, regulations, or Commission pronouncements, and is not legally binding. The updated content primarily clarifies the definition of a "central party". SEC staff stated that participants in a functional crypto system’s broad governance structure, if unaffiliated and without separate agreements to act in concert, generally do not qualify as a "group of persons or entities" under the definition. A central party’s "oversight participation" refers to control over access to the protocol, validator, or user layers—such as unilaterally granting or restricting access, deciding or modifying upgrade and voting processes, controlling who may participate in consensus, or altering rule codes, rolling back transactions, or revoking access. The FAQ also notes that "functional" and "decentralized" are separate concepts: a functional crypto system where digital assets are native may exhibit decentralized traits, though the degree of decentralization varies based on facts and circumstances.

Liquid Federation announced that its network’s Bitcoin reserves have been fully restored, re-establishing 1:1 BTC backing for all LBTC. Users can now transfer between Bitcoin and Liquid at a 1:1 ratio via participating swap service providers.

Coinbase CEO Brian Armstrong announced in a post that the platform has added a new registration page for AI agents, and aims to build Coinbase into the most AI-empowered financial account.

According to data from BIT Stock Platform, the Nasdaq and S&P posted "A-share style sell-offs" in U.S. stock market closing, with the Nasdaq 100 entering a technical correction. Intel (INTC) dropped another 9%. After Marvell, the leading optical module manufacturer, announced its acquisition of Lumentum, the leading optical chip firm, MRVL fell over 12%, logging a 32% cumulative decline over three days, while LITE plunged 18%. Semiconductor, storage, optical communication, and crypto-related sectors all declined broadly. Semiconductor and storage: Seagate Technology (STX) down 7.88%; Western Digital (WDC) down 7.52%; SanDisk (SNDK) down 6.59%; Micron Technology (MU) down 5.78%; NVIDIA (NVDA) down 1.26%; Intel (INTC) down 8.80%; Advanced Micro Devices (AMD) down 7.52%. Crypto-related: Strategy (MSTR) rose 0.19%; Coinbase (COIN) down 3.98%; Circle (CRCL) down 0.63%; BitMine (BMNR) down 3.17%; SharpLink (SBET) down 3.71%. Optical communication: FOTO (FOTO) down 8.08%; Marvell Technology (MRVL) down 12.72%; Applied Optoelectronics (AAOI) down 9.49%; Lumentum (LITE) down 18.59%; Coherent (COHR) down 4.93%; Ciena (CIEN) down 11.34%; Fabrinet (FN) down 3.85%; AXT (AXTI) down 12.46%.