Address poisoning scams surge on Ethereum post-Fusaka upgrade

Address poisoning scams have seen a sharp increase since Ethereum's Fusaka upgrade in December 2025, CryptoPotato reported. This type of attack involves scammers planting a fake address, nearly identical to a user's real one, in the victim's transaction history to trick them into copying and pasting it for a future transfer. Etherscan analysts noted that the Fusaka upgrade improved network scalability and lowered fees. This has reduced the cost of dust transfers—sending minuscule amounts of crypto—allowing attackers to execute address poisoning attacks with much greater frequency.