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Ethereum news shows US Ethereum ETFs recorded a net outflow of 37,809 ETH on February 5, 2026, according to on-chain news from Lookonchain. US Bitcoin ETFs saw 7,925 BTC leave, while Solana ETFs lost 21,223 SOL. The outflows came amid mixed market sentiment.

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Bitcoin breaking news: Independent researcher Giancarlo Lelli cracked a 15-bit ECC key used by Bitcoin and received 1 Bitcoin as part of Project Eleven’s Q-Day prize. Lelli used public quantum hardware and a modified Shor’s algorithm to break the key from 32,767 possibilities. The attack is 512 times more difficult than the previous 6-bit key cracked in September 2025. Project Eleven CEO Alex Pruden said Bitcoin’s 6.9 million vulnerable static addresses include 1 million linked to Satoshi Nakamoto. The Bitcoin network is advancing BIP-360 for quantum-resistant addresses, while Ethereum, Ripple, and Tron are also developing post-quantum defenses.

Researcher Breaks 15-Bit ECC Key, Claims 1 Bitcoin Reward

Singapore’s Anti-Scam Centre and Cybercrime Investigation Department, under government crypto regulations, intercepted over SGD 2.86 million in fraudulent funds during a one-month operation from March 16 to April 15, 2026. Collaborating with crypto platforms including Coinbase, Coinhako, StraitsX, and Upbit, they utilized tools from TRM Labs and Chainalysis to trace funds tied to scams such as impersonation of government officials, investment fraud, job scams, and online romance scams. The operation underscores the need for a crypto scam alert system as authorities continue to track and recover illicit funds.

Singapore Police and crypto platforms intercept over SGD 2.86 million in fraud funds during one-month operation

On April 24, 2026, the DeFi Education Fund and the Digital Chamber of Commerce sent a joint letter to the SEC, urging formal DeFi regulations. The letter requests the agency to clarify the definition of a broker, excluding validators, APIs, oracles, and cloud providers. Gary Gensler has adopted a more open stance toward crypto than previous leaders. Industry groups have influenced the regulatory trajectory. DeFi advocates argue that clear rules would encourage risk-on assets and support CFT initiatives.

DeFi advocacy groups urge the SEC to formalize DeFi regulations

Brazil has intensified a regulatory crackdown by blocking access to prediction market platforms like Polymarket and Kalshi, along with 28 others, under a new federal resolution. The move targets contracts linked to elections, sports, and entertainment, aiming to curb unregulated online gambling. Finance Minister Dario Durigan said the platforms operate outside Brazil’s betting laws. The Banco Central do Brasil banned derivatives tied to non-financial events, affecting liquidity and crypto markets. Contracts based on approved financial benchmarks may still be permitted if approved by the CVM. The action follows B3’s expansion into derivatives, including election-linked products, now prohibited under the new rules.

Brazil Blocks Polymarket and Kalshi in Prediction Market Crackdown

Market volatility looms as Shiba Inu (SHIB) saw over 184 billion tokens flow into exchanges this weekend. 36 Crypto reported the surge, with CryptoQuant data showing rising inflows and a higher seven-day average. The movement suggests increased trading activity and potential sell pressure as investors position for volatility.