As the market for digital coins continues to grow and mature, the volume and diversity of threats to broader and more accessible uses of cryptocurrency are expanding. Attacks against exchanges are the largest-scale threats to cryptocurrency security. Attackers will likely continue to target exchanges because they offer a near-direct means of accessing hard-to-trace digital currencies. In January 2018, the Tokyo-based Coincheck exchange was compromised and 58 billion yen ($530 million) worth of NEM coins were stolen from 260,000 people.”]