Hackers who stole NEM virtual coins from Tokyo-based bourse operator Coincheck Inc. in January may have already converted the full amount into other cryptocurrencies, a cybersecurity expert said Thursday after examining transaction records.The NEM Foundation, a Singapore-based organization promoting the coin, had been tracking transactions of the stolen currency but said Tuesday it had stopped doing so. The foundation did not say why.Conversions of the stolen NEM increased rapidly around the time of the NEM Foundation's announcement. On Tuesday alone, an amount of NEM worth about 11 billion…READ FULL ARTICLE