
A hacker has returned 1 million OP tokens to Ethereum (CRYPTO: ETH) co-founder Vitalik Buterin. Some 18 million more tokens are expected to be returned once certain conditions are met.
What Happened: Following the recent exploit of Optimism (CRYPTO: OP) where 20 million OP were stolen due to a technical error by the protocol, the hacker pledged in an on-chain message to return 18 million OP — currently worth over $15 million.