News linked to both this project and an event.
Odaily News: As of August, cumulative top-ups on USDC- and USDT-linked stablecoin cards have reached $13.8 billion, an increase of nearly $10 billion over the past 12 months. Stablecoin cards are shifting USDC and USDT from trading balances toward everyday consumer use cases.USDC currently leads in tracked card spending, while USDT is accelerating its catch-up. The two follow different adoption paths: USDC benefits more from fintech integrations and payment infrastructure, whereas USDT is more active across exchanges, remittances, and emerging markets.On-chain settlement also reflects a multi-chain distribution, with Base leading at approximately $1.2 billion, followed by Solana at $635 million, Polygon at $544 million, and Optimism at $509 million. Networks such as Arbitrum, Scroll, Ethereum, and Stellar are also carrying significant activity.Stablecoin cards still rely on traditional payment networks like Visa and Mastercard, shifting the competitive focus toward custody, FX costs, cashback, and capital efficiency. Meanwhile, Circle has renewed its USDC partnership with Coinbase under the original terms, excluding any dividend arrangements. (Bitcoin.com News)
Odaily News, SlowMist Security Team disclosed that the cross-chain bridge project Allbridge suffered an attack on August 19, 2026, with losses of approximately $190,000. Notably, this attack was not executed instantaneously—the attacker began laying the groundwork nearly a month in advance, bypassing the verification mechanism through forged cross-chain messages.According to SlowMist's analysis, on July 26, the attacker directly called Circle's MessageTransmitterV2.sendMessage function on the Polygon chain, constructing a cross-chain message disguised as CCTP-style, claiming a transfer of 1 million USDC, despite no actual USDC burn operation occurring. Subsequently, Circle generated a valid attestation for this complete message following standard procedures.Approximately 24 days later, on August 19, the attacker waited for the Base Router to receive a genuine CCTP deposit, bringing its balance to approximately 191,000 USDC, then launched the attack just 6 seconds later. Using the previously forged message and attestation, the attacker called Allbridge's receiveCctpMessage function. Due to the project's lack of critical validation, the system mistook the fraudulent cross-chain message for a genuine deposit and recorded a 1 million USDC credit.Subsequently, the attacker borrowed approximately 809,000 USDC temporarily via an Aave flash loan to match the Router's balance with the forged amount, then utilized the internal credit record to call the transfer function, ultimately moving out approximately 999,000 USDC (after deducting a 0.1% fee). After repaying the flash loan and fees, the attacker netted approximately $189,800 in profit. The root cause of this vulnerability lies in Allbridge's failure to verify the identity of the cross-chain message sender and receiver, as well as its failure to confirm whether USDC was genuinely minted or whether the balance actually increased—instead directly trusting the amount and message hash data constructed by the attacker.SlowMist emphasized that on-chain message verification does not equate to actual asset arrival. Cross-chain protocols must not only verify message authenticity but also ensure the message source is trustworthy, confirm the receiver is Circle's official TokenMessengerV2, and only record assets after confirming actual minting and balance changes. This incident once again highlights the security risks in cross-chain bridges' message verification and asset settlement processes.
Odaily News: Cryptocurrency exchange Coinbase's x402 payment protocol has processed approximately 14 million AI agent transfers over the past 30 days, with the Base network handling 7.3 million transfers and the Polygon network processing 5.6 million. USDC covers nearly all of these transfers. x402 utilizes the HTTP 402 "Payment Required" mechanism, enabling software to automatically request and complete payments. Coinbase has expanded its related payment services to the Base, Solana, and Polygon networks, supporting USDC as the settlement asset. In July, Coinbase launched Coinbase Business, allowing enterprises to directly receive USDC payments from AI agents, with support for payment collection, reconciliation, and withdrawals. Coinbase has described agent payments as one of its "high-conviction bets." (Bitcoin.com News)
Odaily News: Coinbase has announced that it will stop supporting USDC deposits and withdrawals on the Noble network as of August 17. USDC deposits and withdrawals on other supported networks, including Ethereum, Base, Solana, Arbitrum, Optimism, and Polygon, remain unaffected. Coinbase reminds users not to transfer funds to its Noble network USDC deposit address after August 17, as such funds may be irretrievable.
Bitget Wallet has officially launched full-token payment capabilities, allowing users to use thousands of cryptocurrencies beyond just USDT/USDC for card top-ups and QR code payments, eliminating the need for manual swaps or cross-chain transfers. This feature is now available in over 50 countries and regions across Asia-Pacific, Europe, Latin America, and select emerging markets.The initial range of supported tokens includes mainstream assets such as USDT, USDC, ETH, SOL, BNB, BGB, and POL; ecosystem and community tokens like SHIB; as well as regional stablecoins like BRZ (Brazilian Real-backed stablecoin) and XSGD (Singapore Dollar-backed stablecoin). This capability is powered by Onchain Payments Matrix and currently supports over 10 public chains, including Polygon, BNB Chain, Ethereum, and Base, with continuous expansion of supported tokens and networks underway.Through this move, Bitget Wallet aims to integrate on-chain assets into users' everyday consumption and payment scenarios, further enhancing the practical utility of cryptocurrencies and ensuring users can spend any token for real-world purchases.
Block's Cash App is gradually rolling out stablecoin payment functionality to its nearly 60 million users. According to sources familiar with the matter, the feature currently covers approximately 25% of users and is expected to reach full 100% availability within this week.The core functionality supports users in depositing and withdrawing via USDC, allowing free transfers of funds between external wallets and Cash App balances, and using stablecoins as a settlement tool for payments rather than as investment products. It currently supports transactions across four blockchain networks, including Solana, Ethereum, Polygon, and Arbitrum. Due to the irreversible nature of on-chain transactions, incorrect addresses or unsupported network transfers may result in permanent loss of funds.Block CEO Jack Dorsey previously stated that despite his longstanding preference for Bitcoin, user demand for stablecoins has prompted the company to adjust its strategy. (CoinDesk)
Polymarket staff member Shantikiran Chanal posted on platform X, stating that they have taken note of the security reports related to reward distribution, and that user funds and market settlements remain safe. The investigation indicates that a private key leak occurred in a wallet used for internal operations, and the issue is not related to contracts or core infrastructure. Further updates will be provided.Previous report: ZachXBT stated that the Polymarket UMA CTF Adapter contract allegedly came under attack on Polygon, with over $520,000 having been drained.
B.AI, a cutting-edge financial infrastructure platform for the AI era, has officially launched deposit functionality for $HTX and $WBTC. Following this upgrade, users can now perform seamless operations via TRON, Ethereum (supporting WBTC and HTX), and BNB Chain (supporting HTX). B.AI’s ecosystem now fully covers eight major public blockchains—TRON, BNB Chain, Ethereum, Base, Arbitrum, Optimism, Polygon, and Solana—and supports up to 15 core crypto assets. B.AI remains committed to breaking down cross-chain asset barriers, enabling users—regardless of their preferred network or asset—to enjoy lightning-fast, secure, and frictionless account and payment experiences.
B.AI has officially integrated into the Solana ecosystem, comprehensively upgrading its cross-chain login and payment capabilities. Users can now log in with one click via MetaMask and Phantom wallets and top up or subscribe using SOL, USDT, USDC, or WBTC on the Solana network. B.AI now supports eight major public blockchains—TRON, BNB Chain, Ethereum, Base, Arbitrum, Optimism, Polygon, and Solana—building a more open and decentralized multi-chain AI economy. New users enjoy an exclusive limited-time welcome offer: 500,000 points upon first login, a 1:1 bonus on top-ups, and up to an additional $100 worth of points per user. Going forward, B.AI will lower entry barriers and expand asset options to help you seamlessly enter the new era of intelligent economics.
Huma Finance posted on X platform, stating that its old v1 contract deployed on Polygon was exploited today, resulting in the transfer of approximately 101,400 USDC. This incident did not compromise user funds, and the related PST system was also unaffected. Only the gradually phased-out v1 legacy pools were impacted. The Huma v2 system is a complete rewrite deployed on Solana and is not vulnerable to this exploit. The team was already in the process of retiring v1 liquidity pools, and following this incident, they have fully suspended the operation of v1 contracts and accelerated the completion of migration efforts.
According to the official documentation of the prediction market platform Polymarket, the Bridge Deposit page has consolidated the previously separate Ethereum and Polygon deposit recovery tools into a single tool, and removed the original "matic-recovery[.]polymarket[.]com" link.
According to Fortune, Meta has quietly launched a stablecoin payment feature, offering select creators in Colombia and the Philippines the ability to receive payments in USDC on the Solana and Polygon networks. Creators can enter their third-party wallet addresses into Facebook’s payout platform to withdraw funds. Meta does not provide USDC-to-local-fiat conversion services and partners with Stripe to handle related tax filings. According to Marc Boiron, CEO of Polygon Labs, the initiative is expected to expand to over 160 countries by year-end. This launch comes more than four years after Meta’s Libra project—later renamed Diem—was discontinued in 2022.