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Circle outlines a phased upgrade to protect USDC and Arc from future quantum computing threats.

Protocol Fundamentals
30 May 2026
Coincu
View Source
Bullish
pluang ai news

Circle has published a white paper detailing a multi-phase upgrade path to enhance the quantum resistance of its Arc blockchain platform and USDC stablecoin. This move addresses the potential risks posed by future quantum computers that could break current cryptographic protections used in blockchain systems. While no immediate changes or timelines were announced, the plan signals early preparation for a complex transition that will require coordination across the crypto ecosystem. The upgrade could influence industry standards and prompt other stablecoin issuers to accelerate their own quantum security strategies.

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