USDT and USDC Integration: Kima’s Mastercard Partnership Revolutionizes Stablecoin Prepaid Cards

In a groundbreaking move, Kima has partnered with Mastercard to enable stablecoin top-ups for prepaid cards, leveraging USDC and USDT to bridge the gap between crypto and fiat. This collaboration, part of Mastercard’s sandbox program, underscores the growing integration of digital assets into mainstream finance. By eliminating traditional intermediaries, the partnership aims to streamline transactions and enhance accessibility for users worldwide. As of May 2025, this development marks a significant milestone in the adoption of stablecoins like USDT, paving the way for broader crypto-fiat interoperability.

Kima’s Mastercard Deal Unleashes Bold Stablecoin Prepaid Cards’ Top-ups

Kima has forged a strategic partnership with Mastercard to facilitate stablecoin top-ups for prepaid cards, marking a significant leap in crypto-fiat integration. The collaboration leverages USDC and USDT, bypassing traditional intermediaries to streamline transactions.

Mastercard’s sandbox program aligns with its broader ambition to embed digital assets into mainstream finance. Kima’s decentralized settlement protocol bridges public blockchains and private banking systems, enabling seamless payments through self-custody wallets.

The MOVE accelerates institutional adoption of stablecoins, reinforcing Mastercard’s expanding crypto initiatives. Market observers note the potential to reshape liquidity flows between decentralized and traditional finance.

U.S. Senate Revives Stablecoin Regulation Push with Updated GENIUS Act

The U.S. Senate is reigniting efforts to regulate stablecoins, with revised language in the GENIUS Act expected to advance as soon as Thursday. Negotiations resumed after Democratic objections tied to former President Trump’s crypto interests stalled progress last week.

The proposed legislation aims to create a federal framework for asset-pegged cryptocurrencies like Tether’s USDT and Circle’s USDC. Market participants view this as a critical step toward legitimizing stablecoins - the bridge tokens between traditional finance and decentralized ecosystems.

This regulatory clarity could catalyze broader institutional adoption of crypto markets. Stablecoins serve as the primary on-ramps for traders across exchanges including Binance, Coinbase, and Bybit, with daily volumes often surpassing spot trading pairs.

Tether’s USDT Freeze Vulnerability Exploited for $78M Theft Since 2017

Tether’s USDT stablecoin has suffered repeated exploits due to a systemic flaw in its multi-signature freeze mechanism, allowing malicious actors to siphon over $78 million since 2017. Blockchain forensic firms AMLBot and PeckShield identified the critical weakness: a time lag between freeze requests and on-chain execution created by the multi-sig contract design.

The vulnerability primarily affects ethereum and Tron-based USDT transactions, where bad actors capitalize on the approval delay window. Once a freeze is initiated, the required multi-party verification process creates exploitable gaps—sometimes lasting hours—during which funds can be moved illicitly.

This structural issue underscores the operational challenges of governing blockchain-based assets at scale. While Tether maintains its position as the dominant stablecoin, such security gaps may prompt reevaluation of governance models for asset-backed tokens.