British authorities are pursuing a major cryptocurrency network linked to Russia valued at $86 billion. Financial institutions and payment service providers have been instructed to examine network indicators as part of the crackdown. The initiative coincides with plans to increase penalties for sanctions violations. However, raising the maximum fine to 100% of transaction value by the Office of Financial Sanctions Implementation still requires parliamentary approval through new legislation. The move represents part of broader efforts to enforce economic sanctions and prevent circumvention through digital asset channels.