US chartered bank SoFi has enabled Solana network deposits for its 13.7 million customers, accessible directly through its banking app. The feature allows users to deposit funds to the Solana blockchain within the app.

M2 money supply reached an all-time high, marking a record level. The message also included the line "Buy Bitcoin. Prepare accordingly" alongside the record-high remark.

Vitalik Buterin said Ethereum's "Strawmap" aims to cut slot time from 12 seconds to 2 seconds and achieve 6–16-second finality using post-quantum hash-based signatures. Lookonchain data, citing Arkham, show he sold 17,196 ETH ($34.96 million) since the beginning of February, surpassing his January allocation of 16,384 ETH by 4.9%.

Ledger CTO Charles Guillemet said quantum computers powerful enough to break Elliptic Curve Cryptography could allow attackers to derive private keys from exposed public keys across major blockchains. He noted that Bitcoin public keys are revealed when coins are spent and were directly embedded in early pay-to-public-key outputs, leaving about 7 million BTC, including roughly 1 million attributed to Satoshi Nakamoto, theoretically vulnerable in an advanced quantum scenario. Guillemet said hardware signers are now the preferred way to secure cryptocurrencies because keys remain offline and signatures are generated inside a Secure Element, and Ledger is running post-quantum cryptography experiments in Secure Elements using software-only implementations despite significant RAM and compute constraints. He added that post-quantum cryptography offers quantum-resistant signature schemes in hash-based and lattice-based families, but stressed that secure implementation in signers is complex, while Ethereum cofounder Vitalik Buterin has separately outlined a roadmap to protect the Ethereum network from future quantum threats.

Cardano saw liquidity reach $14 million in one hour ahead of the USDC mainnet launch. The activity involved ADA, USDC, and USDCX.

A group of Senate Democrats has called on Attorney General Bondi and Treasury Secretary Bessent to open an investigation into Binance over sanctions-related concerns. The lawmakers are urging the officials to scrutinize the crypto exchange's compliance practices.

Dogecoin fell to $0.095 as liquidations across the crypto market reached $300 million. The decline in DOGE coincided with marketwide position liquidations totaling $300 million across digital assets.

Bitcoin slid toward $66,000 and traded around $67,000 as traders reassessed risk, with on-chain data showing underwater positions near current levels turning rallies into derisking opportunities rather than dip-buying chances, a report said. The report noted that losses in the mid-$60,000s serve as a key checkpoint, keeping upside limited and prompting cautious portfolio management with tighter position sizing and stop levels. A popular analyst warned the current setup could precede a major crash and deeper correction, leading traders and institutions to apply stricter risk controls while watching whether Bitcoin can regain upward momentum.

Cardano recorded 14 million USDCx minted on February 27, ahead of the stated February launch deadline for the stablecoin integration, on-chain data from Cexplorer show. Circle USDC integration with Cardano was signed and announced by Charles Hoskinson at the end of January 2026, with the asset on Cardano identified by the ticker USDCx, U.Today reported. USDC on Cardano will be non-native and backed one-to-one by original USDC via Circle Xreserve infrastructure, a setup aimed at non-EVM chains like Cardano and one that emphasizes transaction privacy using Zero Knowledge Proofs; the X suffix reflects that structure. Direct fiat redemption through a Circle bank account is available only to institutional clients, while retail users are expected to convert via centralized exchanges or DEXes.