TradeGlobal issuesPolyNetwork hack reveals 'flaw in the system'02:56This browser does not support the video element.TradeGlobal issuesMonika Jones08/11/2021August 11, 2021The cryptocurrency platform said hackers cracked its security, making off with a haul potentially worth $600 million. Susannah Streeter from Hargreaves Lansdown told DW hacks like that are not new to the crypto world.Copy linkAdvertisement