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.

Google Research said a new estimate shows the quantum resources needed to break the cryptography used by many blockchains have dropped by about 20x, potentially bringing the risk closer than earlier projections. The team argued faster execution could enable "on-spend" attacks against Bitcoin transactions during the roughly 10-minute block window, and pointed to a 2029 goal for migrating to post-quantum cryptography.

GameStop's latest 10-K filing says the company did not sell the 4,709 BTC it bought last year, instead pledging it as collateral with Coinbase Credit. The filing describes a covered-call strategy intended to earn option-premium income, with strike prices set between $105,000 and $110,000 and an expiry on Friday.

Coinbase has again declined to back the latest Clarity Act draft, focusing its objections on language that would bar platforms from paying yield or rewards on stablecoin balances. A bipartisan version circulated Monday would also curb incentives by limiting access to transaction-size data used to calculate rewards.

Ark Invest added 161,513 Circle (CLCR) shares across ARKK, ARKW and ARKF on Tuesday, a purchase valued at $16.34 million based on the $101.17 close. Circle shares slid 20% during the session amid several developments seen as potential headwinds for its USDC business, then rose 1.5% in after-hours trading.

Balancer Labs, the corporate entity behind the Balancer DeFi protocol, will wind down operations following a Nov. 3, 2025 exploit that drained an estimated $128 million. Co-founder Fernando Martinelli said the protocol will keep running through a restructured, "lean" model, with core contributors expected to move to a new entity, Balancer OpCo, pending a governance vote.

South Korea's main opposition party has proposed eliminating a crypto income tax that is scheduled to take effect in 2027, framing the move as a fairness issue for investors. The plan would have imposed a maximum 22% levy on crypto trading profits above 2.5 million won (about $1,665).

Spot bitcoin ETFs in the U.S. recorded net inflows of $199.4 million on Tuesday, led by BlackRock's IBIT with $169 million and Fidelity's FBTC with $24.4 million. The seven-day inflow streak, the longest since October 2025, coincides with new SEC and CFTC guidance that an analyst expects will draw more institutional capital into crypto ETFs.

Crypto.com has entered into a partnership with KG Inicis, described as South Korea's largest payment gateway and value-added network provider, as stated in a Tuesday press release. The firms intend to integrate Crypto.com Pay so that foreign tourists can use digital assets to pay for local goods and services, while merchants receive instant settlement in either fiat or crypto.