On Dec. 27, 2025, Cardano-linked Midnight’s token NIGHT ranked among the day’s strongest movers and entered the top 100. NIGHT rose 7% in 24 hours, touched a local high above $0.086323, and its market capitalization surpassed $1.4 billion, while the broader crypto benchmark declined 1.3%.

Trust Wallet CEO Eowyn Chen outlined a reimbursement process for users hit by the $7 million Google Chrome extension hack that occurred between Dec. 24 and Dec. 26. Affected customers are directed to submit claims through an official dashboard with wallet details, hacker addresses and transaction hashes, while being warned to avoid fake compensation scams.

In December 2025, U.S. spot Ethereum ETFs recorded more than $564 million in investor outflows, putting them on course for their second worst month on record. Assets in these Ether funds have fallen to $17.86 billion, about 37.5% below their August 2025 peak, while Ethereum trades around $2,926, down from its $4,953 high.

On Dec. 24, 2025, TrustWallet’s Chrome extension v2.68.0 was released with a hidden JavaScript payload, according to cybersecurity researchers. On Dec. 26, 2025, the team confirmed about $7M was impacted, rolled out v2.69.0, and pledged refunds, after funds across BTC, SOL, BSC and EVM L2s were drained without authorization.

Solana Foundation has announced plans to build a permissionless bridge between the XRP Ledger and Solana, aiming to enable XRP's more than $120 billion liquidity to access Solana DeFi. According to Solana Foundation representative Vibhu Norby at Solana Breakpoint 2025, the bridge will use LayerZero and HexTrust technology and make XRP function like a native Solana asset in dApps.

On Dec. 12, Lean Ventures agreed with NASDAQ-listed Vivo Federation to create a $300 million vehicle to acquire Ripple Labs shares, giving South Korean investors indirect exposure to XRP. The joint venture targets $75 million in net economic return over three years, and the partners claim investors may access Ripple and XRP exposure at a material discount to spot.

In December 2025, U.S. spot Bitcoin and spot Ethereum ETFs have seen inflows return, signaling a partial recovery after a steep downturn in November 2025. Bitcoin ETFs recorded $198 million in inflows, while Ethereum products attracted $143.35 million, lifting total Bitcoin ETF holdings to over $118 billion, or 6.57% of BTC market capitalization.

Ethereum activated its Fusaka hard fork on December 3, 2025, introducing EIP-7825, which limits individual transactions to 30 million gas to prevent any single transaction from monopolizing block capacity. The change enables predictable zero-knowledge proof processing with worst-case verification times under five seconds. ZK systems can now handle blocks containing 100–200 million gas in real time, supporting Ethereum's scaling objectives, according to Michael Dong, co-founder of Brevis ZK co-processor.

Paul Brody, Global Blockchain Leader at Ernst & Young, projects 2026 will mark a pivotal year for Ethereum privacy technology. Privacy-focused networks now process shielded transactions at costs 2,000 times lower than earlier implementations. Complex transactions are expected to become cost-efficient for business and consumer use within 18 to 24 months.