Hackers return more than US$600 million to Poly Network

Poly Network, a decentralised finances (DeFi) platform, has recovered all funds stolen by a hacker who exploited the platform’s smart contracts. The hacker(s) has promised to return more money than they originally stole. The additional funds will come from the US$500,000 bounty that Poly Network paid the hackers for finding the security flaw, which the hacker(s) have not asked for or accepted.