On December 20, 2025, Tether CEO Paolo Ardoino outlined plans to hire a lead engineer to develop a self-custodial mobile wallet that integrates the firm's on-device AI stack. The product is designed to support only Bitcoin via Lightning, USDT, USAT, and the gold-backed XAUT token, emphasizing payments and value preservation. Built on Tether's WDK and QVAC platforms, the wallet would give users local AI-assisted features without relying on cloud-based data processing.

Uniswap governance has approved the UNIfication proposal after surpassing 40 million votes, paving the way to activate protocol fee switches and launch the upgrade this week. The plan will burn about 100 million UNI from the Foundation’s treasury, reducing circulating supply from 629 million to 529 million and introducing new fee parameters for v2 and v3 pools while aligning Uniswap Labs, the Uniswap Foundation, and on-chain governance.

Kaspersky reported on Thursday that a Windows-targeting infostealer dubbed 'Stealka' is spreading via video game cheats, mods, and pirated software. Distributed through GitHub, SourceForge, and Google Sites, it harvests autofill and extension data from over 100 Chromium- and Gecko-based browsers and threatens 115 extensions and 80 crypto wallets.

On December 22, 2025, Cardano founder Charles Hoskinson warned that rushing post-quantum cryptography could slow blockchain networks and increase costs. He said the necessary tools exist but are inefficient today, urging developers to track benchmarks including NIST's 2024 standards and DARPA's 2033 decision point.

MoonPay president Keith Grossman says tokenization will remake finance faster than digitization reshaped media. He cites institution-led pilots and regulatory milestones, including an SEC/CFTC joint statement in September and SEC approval for DTCC in December. The RWA market cap is nearly $19 billion excluding stablecoins, and DTCC handled about $3.7 quadrillion in 2024.

On Dec. 18, David Sacks said Sens. Tim Scott and John Boozman confirmed a CLARITY Act markup for January 2026. The article notes that key DeFi sections and the definition of "security" remain bracketed in Senate drafts, and most rules would be written over 360 days to 18 months after enactment.

On December 21, 2025 in San Francisco, Gem Wallet announced a unified USDT infrastructure across 10+ chains, adding integrated swaps, bridges, and anti-scam protections. The self-custody, open-source app supports Tron, Ethereum, Solana, BNB Chain, and TON, with biometric security and address-poisoning alerts. Availability spans iOS, Android, and web, with fiat on/off-ramps via MoonPay, Paybis, and Transak.

On December 21 2025, Ethereum co-founder Vitalik Buterin used Farcaster posts to argue that prediction markets help counter extreme opinions and misinformation on emotionally sensitive topics. He responded to criticism of platforms like Polymarket, claiming that small markets on major events do not create harmful incentives and can offer more accurate risk signals than social media or headlines. While Buterin firmly opposed assassination markets, he suggested social norms, oracle design, and journalistic standards as ways to make such markets unworkable.