A crypto user mistakenly sent 49,999,950 USDT to a look‑alike address, an incident attributed to address poisoning, according to SlowMist. The funds were rapidly moved into ETH, split across wallets, and partly routed via Tornado Cash; on December 20, 2025, Cos shared the involved addresses. The wallet had been active about two years with frequent USDT transfers.

On December 20, 2025, Bank of Russia governor Elvira Nabiullina said cryptocurrency mining is among the factors supporting the ruble’s strength. She noted the sector’s gray-market share makes its impact hard to measure. The ruble was a little over 80 per U.S. dollar, after rising above 110 in January and touching around 76 earlier in December.

Bitcoin is trading sideways as $415 million in options are scheduled to expire over the next seven days, with half of that open interest due on 26 December. If buyers can continue to defend the $85k–$88k support band through the expiry window, analysts expect conditions for a FOMO-driven breakout and a bullish base heading into 2026.

On December 20, 2025, on-chain analyst Ali Martinez cautioned that XRP's support weakens below $1.77, raising the odds of a corrective move toward $0.79. His view, based on Glassnode's URPD distribution, highlights thin realized volume under $1.77, with intermediate levels at $1.41, $1.27, and $1.01 seen as fragile. At press time, XRP traded at $1.95, up 4.5% day-on-day but down over 4% week-on-week.

The Eigen Foundation has proposed ELIP-12, an incentive overhaul that would increase rewards for active restakers and fee-paying AVSs on the EigenLayer network. A new Incentives Committee would manage EIGEN emissions, redirect fees from EigenCloud services, and discourage idle stakes. Weekly EIGEN minting levels would be set by governance but could only be changed with Protocol Council approval.

On 20 December 2025, Klarna entered a partnership with Coinbase enabling institutional investors to fund its lending operations using stablecoins. The arrangement routes capital on-chain into short-term, interest-free consumer loans, with blockchain settlement cited for faster cycles and transparency. The move reflects stablecoins’ shift toward financial infrastructure.

XRP climbed from $1.77 to an intraday high of $1.957, approaching the $2 level while forming a double bottom near the recent low. Trading volume dropped 42% to $2.8 billion, raising doubts about the strength of the move even as optimism around XRP ETFs and Ripple's new partnerships supports sentiment.

Blockstream CEO Adam Back criticized Nic Carter on X on Friday for amplifying quantum risk narratives around Bitcoin. Carter said Castle Island Ventures invested in Project Eleven and disclosed the stake on October 20. The debate deepened after Charles Edwards warned that quantum computers could threaten Bitcoin within 2–9 years if security is not upgraded.