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Etherscan hides zero-value token transfers to deter address poisoning attacks

source-logo  cointelegraph.com  + 5 more 10 April 2023 17:05, UTC

According to an Apr. 10 post from Etherscan, the blockchain explorer has disabled the display of zero-value token transfers on its website by default. From now on, users must manually switch on the display from the website's setting page. Etherscan says it made the update to deter address poisoning attacks that have phished and spammed unsuspecting users.

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Address poisoning is a type of crypto scam where an attacker sends a token with near-zero or no value to a user's address to poison it. Afterward, the transaction will be recorded in the soft or hard wallet's history and can be selected when making transfers. The purpose of the scam is to trick the user into sending coins to the scam address by mistake. To do this, hackers use sophisticated software to create scam addresses that look very similar to poisoned addresses, with the same few beginning or ending characters.

That said, the scam is only classified as phishing. Neither the unwanted coins nor the addresses receiving such tokens can compromise users' funds. However, unwanted nonfungible tokens, or NFTs, can potentially compromise an address through interactions, such as moving it to different accounts.

Sample of zero value tokens that will be hidden by Etherscan

Blockchain hardware wallet firm Ledger suggests users hide their unsolicited NFT collections upon receipt. While address poisoning cannot be stopped, Ledger recommends users refrain from retrieving deposit or destination addresses from their transaction history and always double-check that each character of the destination address matches the input address when sending crypto.

Magazine: Here’s how to keep your crypto safe

cointelegraph.com

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