Cyber hackers returned nearly half of the $600 million they stole from DeFi platform Poly Network, in what is considered one of the biggest cryptocurrency heists in history. Around $260 million has been returned as of Wednesday noon, Poly Network said in a tweet. Of the funds given back, $3.3 million were in ethereum, $256 million in Binance smart chain, and $1 million in polygon, according to the post. The return of funds follows pleas from Poly Network on Tuesday, asking the hackers for the money back and urging cryptocurrency exchanges and miners to halt tokens from the hacker's wallets.......