BlockBeats News, July 27th, Coinbase executive Conor Grogan stated in a post that according to their data, at least 913,111 ETH has been permanently lost due to user error, equivalent to over 0.76% of the ETH supply, worth about $34.3 billion. If we add the ETH burned by EIP-1559 (5.3 million ETH), then over 5% of all ETH ever (worth $23.42 billion) has been permanently destroyed.
Some of the largest Ethereum permanent loss events in history include:
The Web3 Foundation lost 306,000 ETH due to the Parity Multisig vulnerability;
Quadriga lost 60,000 ETH due to a smart contract bug;
Akutars lost 11,500 ETH in an NFT minting failure;
Users collectively sent 25,000 ETH to a burn address for unknown reasons;
Conor Grogan added that the $34.3 billion figure is significantly lower than the actual amount of lost/inaccessible ETH, only covering Ethereum that has been permanently locked, such as it does not include all lost private keys or forgotten Genesis wallets, etc. The statistics are sourced from various public reports and inquiries.