South Korean financial regulators are launching a probe into suspicious activity on Upbit after the ZKsync token surged by 970% over three hours on February 1. ZKsync was trading around $0.023 on Sunday morning, South Korean time, ahead of scheduled system maintenance on the Upbit crypto exchange. At 11:30 am, just before maintenance began, the price rose to $0.24, only to drop back to around $0.023 by 6:30 pm the same day, when the maintenance period ended. “We are aware that ZKsync experienced a rapi ...