News linked to both this project and an event.
Mastercard is expanding its settlement network to support regulated stablecoins, planning to introduce stablecoin settlement, intraday settlement, as well as weekend and holiday settlement services to meet the demand for real-time fund movement.According to the introduction, the new settlement framework will operate in parallel with the existing fiat settlement system, providing financial institutions with more flexible liquidity management solutions. The first supported stablecoins include Circle-issued USDC, Paxos-issued PYUSD, USDG and USDP, Ripple-issued RLUSD, and SoFiUSD.The related services will cover blockchain networks such as Ethereum, Solana, Polygon, Base, Arbitrum, and XRPL. (CoinDesk)
According to PR Newswire, the Open Transaction Layer (OTL) officially launched on May 28 as an open industry initiative aimed at establishing a unified transaction coordination standard for on-chain finance. OTL defines shared protocols among institutions, non-custodial wallets, and AI agents for identity verification, messaging, and transaction coordination—covering the entire transaction lifecycle, including discovery, compliance, and settlement. The founding alliance comprises over 25 members, including leading financial institutions, payment service providers, and blockchain foundations such as Fireblocks, Checkout.com, Cross River Bank, MetaMask, Robinhood, Securitize, Wintermute, Solana Foundation, and Polygon. OTL’s technical specifications are built upon mature standards including W3C Decentralized Identifiers (DIDs) and ISO 20022, and adopt a modular five-layer architecture covering Identity, Session, Transport, Messaging, and Application layers. The specifications have been published under an open-source license at otl.network, and the alliance is also open to additional institutional participation.
: Multiple institutions including Robinhood, MetaMask, and eToro, along with Fireblocks, Checkout.com, Cross River Bank, Securitize, Wintermute, and others, jointly announced their participation in the "Open Transaction Layer (OTL)" initiative, aimed at establishing a unified transaction coordination protocol layer for on-chain finance.OTL is positioned as an open protocol stack for coordinating identity verification, compliance validation, transaction messaging, and execution processes among wallets, institutions, and AI agents, addressing the integration fragmentation problem currently plaguing cross-institutional interactions in on-chain finance, where entities operate in silos.The current coalition members include payment companies, trading platforms, wallets, market makers, and custody and stablecoin infrastructure providers, including Robinhood, MetaMask, eToro, MoonPay, SoFi, Wintermute, among others, as well as foundations from multiple public chains such as TON, Solana, Stellar, and Polygon. (Financefeeds)
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.
THORChain has released its fourth update regarding the Asgard vault intrusion incident, publishing the ADR028 proposal and opening voting for node operators. The proposal indicates that the protocol will first absorb losses through its Protocol-Owned Liquidity (POL), with the remaining portion to be borne by synthetic asset holders. The exact proportion is still under evaluation. The POL will be reduced to zero as a result, and the proposal suggests allocating a portion of system revenue over time to gradually replenish it. This plan does not involve minting new RUNE, selling RUNE, or diluting holder equity.On the technical side, the GG20 version will be temporarily retained with a patch upgrade. Trading will resume after the vulnerability is fixed and a successful node rotation is completed. A slower, more security-focused release cadence is planned for the future.Regarding the slashing mechanism, unrelated nodes sharing the same vault as the attacker will be protected, while the attacker's node will be fully slashed. The recovered RUNE will be paired with recoverable assets from the affected vault, and any excess RUNE will be burned.Additionally, THORChain has offered a white-hat bounty to the attacker to recover funds. If a portion of the funds is recovered, the recovery plan will be adjusted proportionally. THORChain emphasizes its commitment to remaining neutral and permissionless, stating it will not censor the attacker's swap transactions after trading resumes.Currently, node operators are voting on the overall direction and principles of the proposal. The specific figures in the ADR are indicative and will be adjusted later via the Mimir mechanism. The goal is to restart the network as soon as possible. A "yes" vote means developers can proceed further along this path.
Odaily Odaily, THORChain posted on platform X that its developers have released an incident update on Discord. Current evidence points to a node thor16uc...cn84q, which recently joined the network, as being associated with the attack. This node is operated by a single malicious actor. The primary hypothesis is that the attacker exploited a vulnerability in the GG20 TSS implementation, causing sensitive key material of vault participants to leak over time. This ultimately enabled the reconstruction of the vault's private key and the execution of unauthorized outgoing transactions.Regarding network status, the network has been paused after multiple node operators executed `make pause`. RUNE transfers and on-chain observation may resume within approximately 12 hours, but transactions, LP operations, signing, and other sensitive operations remain paused.Discussed recovery plans include slashing the affected node's bond, covering losses with protocol-owned liquidity (POL), or other community-driven solutions. THORSec and Outrider Analytics are continuing their investigation. The Treasury is gathering forensic data and coordinating with relevant law enforcement agencies. Full functional recovery is expected to take several days or longer.
Polygon has launched a privacy-focused stablecoin payment feature, utilizing zero-knowledge proof technology to hide the sender, recipient, and transaction amount while maintaining regulatory compliance. (Cointelegraph)