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Revolut disclosed that an unauthorized third party used a legitimate email address under a government agency's real domain to submit false customer data retrieval requests, resulting in the disclosure of sensitive information for a small number of customers. The company referred to the incident as a "complex external impersonation scam," and has since banned the related email address, stating that its systems and customer funds were not affected.The potentially disclosed information includes names, dates of birth, addresses, email addresses, phone numbers, copies of identification documents such as passports and driver's licenses, identity verification selfies, account statements, IBANs, withdrawal records, and complete transaction histories, including Bitcoin transaction records. Former Mt. Gox CEO Mark Karpelès stated that he is one of the affected individuals. Revolut has not disclosed the number of affected customers, whether the incident involved only a single market, or the government agency to which the impersonated domain belongs. The company has notified relevant government agencies, law enforcement, data protection authorities, and financial regulatory bodies. On-chain investigator ZachXBT speculated that the scale of the incident may be limited, but the target may be high-net-worth users.

According to on-chain analyst Ai Yi's monitoring, @XXAntiWar (0xfe57...d850) has started its third battle after returning:Building a long position: A total expenditure of approximately 1.787 million USD, with an average price below 0.086 USD. If not sold, the expected profit exceeds 750,000 USD;Shorting ZEC: Shorted 5,199.97 ZEC at 1,273 USD, with a position value of approximately 6.62 million USD, and closed the position at 1,145.4 USD, realizing a profit of 660,000 USD;Going long on PONS: Went long on 4,765,400 PONS at 0.5984 USD, with a position value of approximately 3.15 million USD, currently floating a profit of 308,000 USD.

The Bank of Italy (Banca d'Italia) issued a notice requiring payment service providers (PSPs) and crypto asset service providers (CASPs) to continuously use procedures related to the travel rule to review financial transactions, without setting a minimum amount threshold.Relevant institutions must verify the names of the initiator and beneficiary when establishing customer relationships, when the European Council makes decisions, and at the time of each transaction, and compare them with the lists of sanctioned individuals and entities. Automated systems must not set a minimum amount threshold for transaction reviews, and transfer delays may be accepted if necessary to enhance sanctions screening.

According to The Block, Uniswap Labs announced the launch of a new tool, StablePair Hook, designed specifically for stablecoin trading pairs such as USDC/USDT and USDC/USDG.Uniswap Labs stated that StablePair Hook can provide traders with consistent and predictable quotes, allowing liquidity providers to retain more of the value they create. Data shows that in the second quarter, the trading volume of exchanges between stablecoins on Uniswap reached $43.4 billion, surpassing the total of the other three major on-chain trading venues.StablePair Hook replaces fixed rates with dynamic rates, which adjust based on the degree of price deviation from the reference price within the pool. When the price is close to the reference price, the Hook adjusts the transaction fee for each trade to maintain a fixed bid-ask spread; when the price deviates from the reference range, trades that push the price away incur no fees, while trades that pull the price back to the reference price use a Dutch auction mechanism, with fees decreasing block by block from high to low until accepted by the trader. Uniswap Labs stated that this allows liquidity providers to retain more value from price returns.The first batch of StablePair Hook pools will go live on Ethereum, supporting USDC/USDG and USDC/USDT trading pairs. This Hook can be upgraded through Uniswap governance, and the fee system and other parameters can be adjusted without migrating liquidity.

Circle's blockchain Arc tweeted that the transaction memo feature is now available on the testnet.Developers can attach structured context to a single contract call without modifying the existing contract. Applicable scenarios include invoice numbers, payment reference numbers, customer IDs, and reconciliation tracking.

The Block Research released a report on September 8, stating that during the period from October 2025 to August 2026, Bitcoin fell by over 50% and the total cryptocurrency market value decreased by over $2 trillion, while the total supply of stablecoins remained around $290 billion, with about 90% issued by Tether and Circle.In the past 365 days, the transaction volume of stablecoins exceeded $90 trillion, more than doubling compared to 2025. The daily turnover rate increased from 0.38 times in August 2024 to 0.78 times in August 2026. Ethereum holds about $147 billion (turnover rate 0.51 times/day), Base holds $4.5 billion (16.7 times/day), Solana about $13 billion (1.08 times/day), and Tron over $90 billion (0.25 times/day). The Bank for International Settlements statistics indicate that the stablecoin transaction volume in 2025 was about $35 trillion, with payment-related transactions accounting for 1.1%. Chainalysis data shows that in 2025, illegal addresses received at least $154 billion in stablecoins.The GENIUS Act was signed in July 2025. In April 2026, FinCEN and OFAC jointly proposed to classify payment stablecoin issuers as financial institutions under the Bank Secrecy Act, and in August, the Treasury proposed a definition to clarify the scope of applicability, which is still a proposal. Companies such as Paxos, zerohash, Rain, and Altitude describe a shift from one-time KYC at onboarding to continuous lifecycle monitoring of on-chain behavior, counterparties, turnover rates, and geographic locations.

Vitalik posted on the X platform, expressing the hope to include the recursive STARK memory pool proposal EIP-8288 in the Ethereum I-star upgrade, stating that it can be seen as the next step after Frames.This proposal allows quantum-safe signature data to be placed off-chain, reducing the cost of signatures; the fuel cost for quantum-safe privacy transactions is also expected to drop from about 10 million to tens of thousands. The proposal relies on frames and recursive STARK aggregated transaction dependencies, with nodes sending a STARK of about 100 to 300KB each time period; the on-chain overhead is one STARK and 96 bytes for each statement to be proven.

According to The Block, Aave has officially launched its official MCP server, allowing AI agents to access real-time protocol data from Aave V3 and V4 and prepare transactions.The server supports integration with MCP-compatible tools such as ChatGPT and Claude, enabling users to have control over transaction signature permissions.

According to Crypto Briefing, the Bank of Italy has warned cryptocurrency service providers that every cryptocurrency transfer, regardless of the transaction amount, must undergo sanctions screening, and no minimum transaction threshold may be set to evade automatic screening. This requirement stems from guidelines applicable in Italy from December 30, 2025, issued by the European Banking Authority, and is not a new sanction obligation.The Bank of Italy specifically pointed out that certain instant payment exemptions for payment service providers do not apply to cryptocurrency transfers. Cryptocurrency companies need to review their screening systems, update their sanctions lists, and alert procedures to ensure coverage of all applicable transactions. The MiCA authorization does not replace these independent obligations under the EU restrictive measures rules. This move will increase compliance costs for Italian cryptocurrency companies, requiring more complex systems to handle transaction alerts and potential sanctions matches.

According to monitoring by Solid Intel, Robinhood Chain's daily transaction fees reached a record high of 6 million dollars, weekly transaction fees increased 17 times to 25 million dollars, and DEX trading volume doubled to 12.4 billion dollars.

Iran is gradually relaxing foreign exchange controls and allowing companies to use Tether (USDT) and Bitcoin for cross-border transactions. According to informed sources, the Central Bank of Iran has encouraged companies in recent months to repatriate overseas funds through local cryptocurrency exchanges, and companies can also exchange foreign currency in the open market, using export revenue directly for imported goods. An executive close to the Iranian regime stated that the central bank is currently not questioning the methods of fund transfer, and using cryptocurrency to receive export payments has become the norm.Data shows that approximately $10 billion worth of cryptocurrency will flow through Iran by 2025, and blockchain analytics firm Elliptic estimates that Iran accounts for about 4.5% of global Bitcoin mining activity. There are still over $100 billion in undeclared overseas and domestic earnings within Iran, with more than 20,000 individuals and companies failing to fulfill their obligation to repatriate approximately €94 billion in export revenue. Tether had previously frozen about $344 million in wallet assets related to the Central Bank of Iran, and the U.S. Treasury has also warned that engaging in digital asset transactions with Iran may face sanction risks.

According to Catcher Predict monitoring on-chain data, it predicts significant capital movements in the Polymarket. A large whale invested $89,540 in a single bet on the event "BV Borussia 09 Dortmund vs. Villarreal CF" targeting "BV Borussia 09 Dortmund." Based on the current transaction price, the latest corresponding winning probability for this target is 44%.

According to Catcher Predict monitoring on-chain data, significant capital movements are predicted in the market Polymarket. A large whale invested $70,000 in a single bet on the event "Club Brugge KV vs Aston Villa FC" for "Aston Villa FC". Based on the current transaction price, the latest corresponding winning probability for this bet is 35%.

Galaxy Research posted on X that yesterday the daily transaction count for Bitcoin reached 893,391, marking the fourth highest single-day transaction count in Bitcoin's history, and this figure is above the 99th percentile of its historical range.

According to CoinDesk, Ethereum core developers have included EIP-8141 (Frame Transactions) in the 2027 Hegotá upgrade plan. During the core developer call on August 27, the proposal was marked as "Scheduled for Inclusion," meaning it will become part of the network update rather than just a candidate proposal. Ethereum co-founder Vitalik Buterin, one of the ten authors of the proposal, stated on X on Sunday night that Frames have made significant progress in the past few months.Frames aim to address the issue where users hold stablecoins but cannot transfer them due to a lack of ETH. It splits transactions into independent steps such as authorization verification, fee payment, and instruction execution, allowing the sender and payer accounts to no longer have to be the same. For example, payment applications can cover fees themselves or settle ETH bills on behalf of users after collecting stablecoins, while the Ethereum network still prices in ETH, and users do not need to purchase ETH. Unlike existing wallet solutions that rely on third-party services, Frames will achieve this capability through the standard Ethereum transaction process.Additionally, Frames will bundle operations that need to be executed simultaneously, such as authorization and submission in token transactions, with authorization being revoked if the transaction fails; it also allows accounts to customize transaction approval rules, enabling the replacement of private keys or the adoption of quantum-resistant keys without needing to migrate funds to a new address. Currently, the specification is still a draft, and details may be adjusted before the Hegotá upgrade, with users unable to use Frames yet.

According to CoinDesk, Solana plans to activate Transaction v1 this Wednesday, increasing the maximum capacity of a single transaction from 1232 bytes to 4096 bytes, more than tripling it. After the upgrade, complex operations that previously required splitting into multiple transactions are expected to be consolidated into a single transaction, including large cryptographic proofs, multi-signature payments, and certain privacy transfers.Transaction v1 has been running on the Solana testnet and development network, and the existing transaction format can still be used. Wallets and applications will only need to upgrade when larger transaction space is required. However, on-chain data services relied upon by block explorers, wallets, and trading applications need to adapt to the new format; otherwise, they may not be able to correctly read transaction and priority fee information.This upgrade aims to alleviate the structural limitations imposed by Solana's long-standing 1232-byte transaction cap, further enhancing its ability to handle complex applications. The 4096-byte limit references the common 4KB memory page size of validator hardware to avoid excessively large single transactions that increase network and validation node processing costs.

According to Bitcoin News monitoring, of the 4,200 BTC associated with a peg-out transaction on the Liquid Network, about 4,000 seem to have been transferred simultaneously.A message attached to the subsequent transaction via OP_RETURN states: "We are white hats, please contact us on-chain." The nature of this transaction and whether these funds were transferred through an exploit remains unclear.

Co-founder of Arbitrum Steven Goldfeder and co-founder of Solana Toly engaged in a debate over on-chain transaction fees, MEV protection, and the single sequencer model.Steven stated that one cannot simply compare surface-level fees. Arbitrum One and Robinhood Chain actively prevent front-running and most harmful MEV, while some chains that claim lower fees have higher MEV costs, including front-running against retail investors. He expressed a preference for paying clear fees upfront rather than incurring hidden losses from front-running, sandwich attacks, and other issues for the sake of lower fees.Toly countered that Arbitrum currently has a less favorable bid-ask spread and higher fees. The 10% cut taken from transaction fees alone translates to a cost in basis points that exceeds the loss rate from sandwich attacks, which he estimates to be about 10 times that of the latter, not accounting for the impact of the spread. He emphasized, "A single sequencer that pursues shareholder value maximization can never outperform permissionless competition."

Whale Alert stated that the dormant transactions activated yesterday involved addresses that mined 50 BTC in Bitcoin blocks 43361, 43452, 43647, 43680, 43765, 43855, and 43871. Whale Alert indicated that, according to its research, the aforementioned blocks were not mined by Satoshi Nakamoto.