This indicator has been hosted by a news conference after the exchange hack, which has been told what has happened and what is coming next. This coin was stolen from a hot wallet through many unauthorized transactions on January 26, local time at 3:00 pm. This was a massive hack, resulting in a loss of 523 million NEM coins of US $ 534 million. This coin's Japanese Cryptocurrency Exchange is the largest in the country.
SOURCE - https://cointelegraph.com/news/coincheck-stolen-534-mln-nem-were-stored-on-low-security-hot-wallet