Polymarket said it will open a free, company-run grocery store in New York on February 12, following Kalshi's Tuesday event that covered $50 grocery bills at a WestSide Market. The push aligns with Super Bowl week as both prediction platforms chase user growth amid higher food costs and Polymarket's recent U.S. return under CFTC approval.

On Feb 3, 2026, a guide introduced the Wei Name Service (WNS), a minimal Ethereum naming experiment. It provides human-readable .wei addresses via a single NFT contract and IPFS frontends, with pricing from 0.0005 ETH per year for five-character names to 0.5 ETH per year for one-character registrations.

On Monday, the Nevada Gaming Control Board filed a civil enforcement action in the First Judicial District Court against Coinbase Financial Markets, alleging it offered unlicensed wagers on sports event contracts. The regulator is seeking a temporary restraining order and preliminary injunction to halt Coinbase's operation of a derivatives exchange and prediction market tied to sporting bets, shortly after Coinbase announced prediction markets across all 50 U.S. states through a partnership with Kalshi.

On February 3, 2026, Arbitrum warned that its ArbitrumDAO governance X account had been compromised and used to post an airdrop-themed phishing link at gov-arbitrum[dot]com, urging users not to engage until control is restored. The incident lands amid heavy phishing activity, with January losses estimated at $311.3 million out of roughly $370.3 million in total exploits.

On 3 February, Vitalik Buterin said Ethereum's original "rollup-centric roadmap" no longer fully reflects how the protocol is evolving, as L2s gain usage while securing less value. Rollups now process roughly 3,470 UOPS and hold $40.3 billion in value, down 13.2% year-on-year, amid low L1 gas and planned 2026 gas-limit increases.

Moltbook, an AI-focused social media site that attracted about 1.5 million bot accounts, has been shown to contain serious security flaws including open databases and malicious tools targeting crypto wallets. Security researchers documented prompt injection attacks, fake crypto trading utilities, and a major database exposure that revealed roughly 1.5 million bot passwords and tens of thousands of email addresses. Experts warn that as local AI models advance over the next one to two years, it may become impossible for major providers to use "kill switches" to stop harmful AI agents.

Spain’s Prime Minister Pedro Sánchez said the country will move to ban social media access for children under 16 and mandate age verification, with legal changes starting next week. He added that executives could face criminal liability for failures to remove illegal or hateful content. Sánchez announced the measures at the World Governments Summit in Dubai.

On 2 February, a White House meeting designed to break a long-running deadlock on U.S. crypto market structure legislation ended without a deal, with stablecoin rewards remaining the core sticking point. Banking groups want the bill to restrict interest and other rewards on stablecoins, while crypto firms insist such incentives are essential for growth, leaving the Senate unable to move the bill forward.