Immunefi researcher received a $1 million bounty for reporting vulnerabilities involving $200 million in Polkadot's three parachains

According to ChainCatcher news, an Immunefi researcher named pwning.eth reported a serious vulnerability called Frontier in June. The vulnerability could have been exploited to steal up to $200 million from three Polkadot parachains: Moonbeam, Astar Network, and Acala.

After the vulnerability was reported, the team fixed it and no funds were lost. Moonbeam and Astar have active bug bounty programs with Immunefi, awarding $1 million to white hat hackers through Immunefi. (Source link)