Chinese official media reported details of a crackdown on a money-laundering operation involving cryptocurrencies, shedding light on the mainland’s underground crypto landscape and increased efforts by authorities to seize crypto assets.According to a report last week by the People’s Daily, which cited the Beijing Haidian People’s Procuratorate’s ruling, a former executive surnamed Feng embezzled 140 million yuan (US$19.5 million) from his employer, a tech firm. He then used eight overseas...