On June 10, 2018, South Korean exchange Coinrail suffered an intrusion that resulted in the theft of over $40M in altcoins. The attack compromised approximately 30% of assets held on the platform, including ~$20M in NPXS tokens, $14M in Aston X, and $6M in other tokens. Two-thirds of stolen assets were recovered through partner exchanges.

Coinrail acknowledged the existence of “network intrusion” in its system and estimated that 40 billion won ($37.2 million) worth of coins were stolen. The police are investigating violations but have not announced further details.