The hacker behind one of the largest ever cryptocurrency heists returned almost half of the $600 million stolen assets.
Blockchain platform Poly Network wrote a letter on Twitter, asking the individual to get in touch “to work out a solution”.
The website said the amount of money hacked was the “biggest” incident so far in the decentralised finance industry.
Poly Network posted on Twitter that it had been sent digital tokens relating to three crypto-currencies, including $3.3 million worth of Ethereum, $256 million worth of Binance Smart Chain (BSC) and $1 million worth of Polygon.
A total of $269 million in Ethereum tokens and $84 million in Polygon tokens has yet to be recovered.
$260 million (As of 11 Aug 04:18:39 PM +UTC) of assets had been returned:
The remainings are $269M on Ethereum, $84M on Polygon
— Poly Network (@PolyNetwork2) August 11, 2021
The hacker also took to one of the blockchains to publish a three-page-long Q&A session, where he essentially “interviewed himself”, according to Tom Robinson, co-founder of Elliptic, a London-based blockchain analytics and compliance firm.
The hacker said that he decided to return the stolen assets because he is “not very interested in money”.
“I know it hurts when people are attacked, but shouldn’t they learn something from those hacks?” he wrote in the notes posted to the blockchain.
The hacker added that it had taken him all night to find a vulnerability to exploit. He said he was worried that Poly Network would patch the security flaw quietly without telling anyone, so he decided to take millions of dollars in cryptocurrency tokens to make a point.
But he stressed that he did not want to cause a “real panic [in] the crypto-world”, so he only took “important coins”, except Dogecoin, the cryptocurrency that started off as a joke.