UK sanctions Huobi and ruble stablecoin issuer in crackdown on Russia crypto networks

UK sanctions Huobi exchange and ruble stablecoin issuer in first banking-style crypto crackdown targeting Russia's war financing. Regulation 17A restrictions require UK financial firms to freeze funds and trace blockchain transactions across multiple hops. The A7 payments network processed over $90 billion for Russian military procurement. Global regulators watching closely as traditional sanctions tools apply to digital assets.
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