It has been over 9 years, but who remembers "The DAO"? There are still over 82,300 unclaimed ETH, worth 375 million + over 70,000 ETH in the "Extra balance" worth over 322 million There is also still 1.3 million unclaimed Ethereum Classic https://etherscan.io/address/0xbf4ed7b27f1d666546e30d74d50d173d20bca754 https://etherscan.io/address/0x755cdba6ae4f479f7164792b318b2a06c759833b https://receipt.emerald.cash/addr/0x9f5304da62a5408416ea58a17a92611019bd5ce3/balance(BitMEX Research)