Etherscan Adds Beta Lookalike Address Warning to Its Ethereum Explorer

Etherscan announced a beta warning for lookalike addresses Oct. 23, alerting Ethereum explorer users when similar-looking strings appear together and helping them spot address-poisoning attempts. Called the Lookalike Address Warning (Beta), the feature is enabled by default. Users can turn it off in Site Settings. It can also flag harmless addresses, so a match is not proof of fraud. Address poisoning takes advantage of shortened wallet displays. An attacker creates an address resembling a legitimate recipient, then uses a small transfer or spoofed token event to place it in a transaction history.