Wemix Foundation suffered a $6.2 million hack on February 28 but only alerted its investors on March 4.The hacker stole 8.65 million WEMIX coins from the platform's Play Bridge Vault.Wemix CEO delayed the hack announcement to prevent market panic and additional attacks.Kim Seok-hwan, the CEO of Wemix Foundation, denied the hack was the work of Lazarus, a North Korean-backed hacking group.