Messages in Binance's public chatrooms show some employees and support volunteers helping customers bypass China's crypto ban, including evading its KYC checks (Rohan Goswami/CNBC)

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Rohan Goswami / CNBC:

Messages in Binance’s public chatrooms show some employees and support volunteers helping customers bypass China’s crypto ban, including evading its KYC checks — – Binance founder Changpeng “CZ” Zhao has touted the exchange’s know-your-customer systems, known as KYC, as a billion-dollar effort.