A research paper involving Google warns that sufficiently advanced quantum computers could eventually break elliptic-curve cryptography used by major blockchains, adding pressure to Ethereum's post-quantum transition plans. The authors estimate 1,200–1,450 logical qubits could crack secp256k1 within minutes, with an “on-spend” attack window potentially as short as 9–12 minutes. Ethereum’s roadmap is expected to take years as larger signatures and higher compute requirements complicate upgrades and user migrations.

OpenFX raised $94 million in a Series A round to grow its stablecoin-powered foreign-exchange and remittance payments network. The company said it will deploy the capital to add liquidity, expand into new markets and scale operations across Southeast Asia and Latin America.

Mitsubishi Corporation is set to use JPMorgan Chase’s Blockchain Deposit Account (BDA) system to enable near-instant international fund transfers. The company aims to roll out full-scale global transfers by fiscal 2026 after completing test transactions. The setup is designed for 24/7 U.S. dollar movements across subsidiaries and may support transfers of up to $500 million each.

Metals.io said xU3O8 holders can now pledge the tokenized uranium asset as collateral to borrow stablecoins through an integration with Morpho, with the feature live as of March 30, 2026. The setup runs on the Oku interface and currently enables access to USDC liquidity without selling the underlying physical uranium exposure.

Malicious versions of Axios, a widely used JavaScript package on npm, were published with a hidden dependency that could expose apps—including crypto projects—to a supply-chain attack. Socket Security said the poisoned releases could be pulled automatically by projects using caret version ranges, and noted Axios has roughly 100 million weekly downloads. Developers were advised to check for axios@1.14.1, axios@0.30.4, and plain-crypto-js@4.2.1 and roll back if found.

Nium said it launched a stablecoin-funded card issuance platform on March 30, 2026, letting businesses issue cards on both Visa and Mastercard via a single integration. The company said stablecoin balances can be converted into fiat at the point of sale across hundreds of millions of merchant locations, with compliant issuance supported across 190 countries.

KB Kookmin Card said Tuesday it will work with Avalanche to develop a hybrid stablecoin payment model designed for use with existing credit cards. The company plans to build the system on a public blockchain and, with OpenAsset, cover top-ups, payments, and settlement, while prioritizing wallet stablecoin balances before charging any remainder to credit.

1inch Business said on March 30, 2026 that it expanded its Model Context Protocol (MCP) so autonomous AI agents can directly use DeFi infrastructure to execute swaps and manage onchain portfolios in real time. The update lets developers build goal-driven workflows that plan and route trades across the 1inch network via the Swap API, with access to 15 APIs including Portfolio and Gas Price tools. Developers can enforce controls such as slippage limits, allowed token pairs, and signing methods to keep automated execution within defined rules.