Ripple's dollar-backed stablecoin RLUSD has been designated as an Accepted Fiat-Referenced Token by Abu Dhabi Global Market's Financial Services Regulatory Authority. The approval enables licensed institutions within the financial free zone to incorporate RLUSD into regulated operations. RLUSD currently maintains a market capitalisation exceeding $1 billion and is backed 1:1 by US dollar reserves.

South Korea's Upbit halted deposit and withdrawal services following unauthorized transfers of approximately $37 million in Solana-based tokens on Nov. 27. The exchange relocated remaining assets to cold storage and initiated comprehensive security audits across all blockchain networks. Upbit committed to fully compensating affected users from corporate reserves.

A supply chain attack on the NPM ecosystem has infected more than 400 JavaScript packages, including at least 10 crypto libraries tied to Ethereum Name Service, according to Aikido Security. The malware collects credentials from compromised environments and has spread to over 25,000 repositories. Aikido Security disclosed the breach on Monday after detecting unusual activity across the JavaScript package registry.

AMINA Bank AG secured a Type 1 license uplift from Hong Kong's Securities and Futures Commission, becoming the first international bank authorized to provide regulated crypto trading and custody to institutional clients in the city. The approval covers 13 cryptocurrencies including Bitcoin, Ether, USDC, and Tether. The bank reported a 233% surge in Hong Kong trading volumes during the first half of 2025.

The UAE's Federal-Decree Law No. 6 of 2025 took effect on 16 September, requiring Central Bank licensing for cryptocurrency infrastructure including wallets, APIs, and blockchain explorers. Article 62 subjects digital asset tools to regulatory oversight, while Article 61 extends compliance requirements to marketing and online communications about crypto services. Non-compliance penalties range from AED 50,000 to AED 500,000,000, with potential imprisonment.

Aave Labs received regulatory authorization from the Central Bank of Ireland under the Markets in Crypto-Assets framework to operate its fiat-to-crypto platform, Push, across the European Economic Area. The platform enables zero-fee conversions between euros and digital assets, including Aave's stablecoin GHO. Push operates through a wholly-owned Irish subsidiary and positions itself as a regulated gateway for DeFi users seeking direct access to stablecoins.

Brazil's central bank published Resolutions 519, 520, and 521, classifying stablecoin transactions as foreign exchange operations subject to banking-style oversight. Licensed virtual asset service providers must implement consumer protection and anti-money laundering protocols. Transfers with unlicensed foreign entities are capped at $100,000, with full implementation set for 2 February 2026.

A Columbia University study found that approximately 25% of Polymarket's trading volume over three years was artificially inflated through wash trading, according to blockchain analysis. Researchers identified that 14% of the platform's 1.26 million wallets exhibited coordinated self-dealing patterns. Artificial volume peaked at 60% in December 2023 before declining to 5% by May, with subsequent increases linked to speculation about a potential token launch.

Bitwise has triggered a 20-day automatic effectiveness period for its spot Dogecoin ETF by removing a delaying amendment from its S-1 registration on November 7, 2025. Under Section 8(a) of the Securities Act, the filing will become effective automatically unless the SEC intervenes. The fund could begin trading around November 26, 2025, if no regulatory action is taken.