The cryptocurrency landscape experienced a major technical upgrade and shifted regulatory focus today, highlighted by the mainnet launch of an encrypted mempool feature on the Layer-1 blockchain Aptos. Designed to shield traders, institutions, and artificial intelligence agents from exploitative maximal extractable value (MEV) tactics such as frontrunning and sandwich attacks, the new capability arrives as broader regulatory and accounting frameworks continue to evolve.
Concurrently, a proposed shift in United States accounting standards could soon clear a major hurdle for corporate stablecoin adoption, while international financial watchdogs are sounding the alarm over lingering regulatory gaps in cross-border stablecoin oversight and the rapid integration of artificial intelligence ahead of a high-stakes G20 finance meeting.
Aptos Rolls Out Encrypted Mempool to Curb Frontrunning, Sandwich Attacks
In a move aimed at leveling the playing field for on-chain participants, Layer-1 blockchain Aptos has launched an optional new feature designed to safeguard traders from the costly impacts of maximal extractable value (MEV). Officially going live on the Aptos mainnet, the Encrypted Mempool feature allows users to opt in to a system that keeps pending transactions completely encrypted until their exact block ordering is finalized by the network.
Aptos has positioned the tool as an essential safeguard for institutions executing high-value transactions, retail traders seeking protection from predatory bots, builders, and increasingly autonomous AI agents interacting with decentralized finance (DeFi) protocols.
The core vulnerability targeted by the new feature lies in the transparent nature of traditional public blockchains. Under standard operating conditions, when a user submits a transaction to a major network, the details—including the specific function being called, the assets and amounts involved, and the destination smart contracts—are publicly visible in the mempool before execution. Specialized automated bots constantly scan this public data, allowing bad actors to exploit user intent through frontrunning and sandwich attacks.
In a frontrunning scenario, a bot detects a pending profitable transaction and pays a higher gas fee to ensure its own transaction is executed first. A sandwich attack takes this a step further: a bot places a transaction immediately before and immediately after a user’s trade, artificially manipulating the asset price to siphon value directly from the user’s pocket.
The financial toll of these exploits across the wider cryptocurrency ecosystem is substantial. According to an analysis of EigenPhi data, sandwich attacks on the Ethereum network alone cost traders approximately $60 million during the twelve-month period leading up to October 2025. Meanwhile, a study by Bitquery examining an eleven-month timeframe on Solana revealed that sandwich attacks generated an estimated $29.7 million for predatory bots across nearly 6.9 million separate attacks affecting approximately 2.2 million distinct wallets.
By encrypting transaction details until block finality is secured, Aptos hopes to neutralize the informational advantage that MEV searchers and bots rely on, creating a more secure execution environment for network participants.
US Accounting Proposal Could Clear Path for Corporate Stablecoin Adoption
While infrastructure developers focus on transaction security, financial authorities in the United States are working on rules that could radically alter how corporations manage digital assets. A proposed change to US accounting standards could make it significantly easier for mainstream companies to hold and utilize payment stablecoins without compromising their reported liquidity positions or violating traditional balance sheet metrics, according to a recent report from Stripe-backed blockchain enterprise Tempo.
The Financial Accounting Standards Board (FASB) is actively considering a framework that would allow qualifying stablecoins to be classified as cash equivalents on corporate balance sheets. Under current standard practices, businesses are often forced to report stablecoin holdings under other asset categories, a classification that can negatively impact a company’s liquidity ratios and complicate compliance with strict commercial loan covenants.
However, Tempo’s analysis highlights that the benefits of this proposed accounting treatment will not apply universally. Instead, the classification would depend heavily on whether a company maintains direct redemption rights with the underlying stablecoin issuer. This operational nuance means that two separate corporations holding identical amounts of USD Coin (USDC) could face completely different accounting treatments based strictly on the nature of their direct relationship with issuer Circle.
As an illustration of existing practices, corporate disclosures show that firms like Coinbase already classify USDC and other payment stablecoins as cash equivalents in their annual financial reports, a treatment backed by their direct redemption arrangements with Circle.
This regulatory initiative follows the legislative passage of the GENIUS Act, a bill that established comprehensive federal requirements for payment stablecoin issuers. While the GENIUS Act focused on the systemic safety and backing of the tokens themselves, FASB’s separate regulatory initiative addresses the corporate accounting side of the equation, determining how businesses can ledger those assets on their books. The public comment period for the FASB accounting proposal remains open through November 19, giving industry stakeholders a window to weigh in on the final parameters.
Global Watchdog Flags Stablecoin Risks, AI Threats Ahead of G20
As domestic accounting rules and blockchain protocols undergo structural changes, international regulators are warning of broader systemic vulnerabilities. The Financial Stability Board (FSB), a prominent global financial watchdog, has officially outlined growing financial stability risks associated with the rapid advancement of artificial intelligence alongside lingering regulatory concerns regarding cross-border stablecoins.
In an official letter published, FSB Chair Andrew Bailey issued a stark warning stating that international mechanisms for stablecoin oversight, regulatory coordination, and cross-border crisis management "remain immature or are not yet developed." The concerns build upon the watchdog’s 2025 review, which revealed that out of 28 surveyed global jurisdictions, only 11 had successfully finalized comprehensive stablecoin regulatory frameworks. This fragmented global approach continues to limit the broader adoption of stablecoins in mainstream international finance and trade.
In addition to stablecoin oversight, Bailey urged member states of the G20 to throw their support behind the FSB’s newly finalized set of practices governing responsible artificial intelligence adoption within the financial sector. As financial institutions increasingly integrate machine learning models and autonomous agents into trading, risk assessment, and customer service operations, the potential for systemic disruption grows.
"AI therefore requires our continued close attention alongside careful management by financial institutions," Bailey wrote in the address.
The FSB submitted the formal letter to G20 finance ministers and central bank governors ahead of their scheduled meetings. The G20 serves as the primary international forum for the governments and central bank governors from the world’s major advanced and emerging economies, coordinating global economic policy, financial regulations, and systemic risk management strategies.
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