South Korea detects 600m$ illegal trades

The Korea Customs Service (KCS) stated on January 31 that a total of 637.5 billion won worth (~ $600 million) in foreign currencies have been exchanged illegally, including unrecorded capital outflow using cryptocurrencies.

Source: https://hype.codes/south-korea-detects-600-mln-illegal-trades

What do you think about the use of cryptocurrency in the money laundering?