What MetaMask announced
On 17 June 2026, MetaMask announced address-poisoning detection for Mobile and Extension across EVM networks. It compares a pasted recipient with addresses in the user's transaction history and warns when the beginning and end resemble a familiar address but the middle differs. The announcement also describes first-time recipient warnings and longer address previews.
Why this is useful
Address poisoning plants lookalike entries in transaction history, often through negligible-value transfers. The intended mistake happens later, when a user copies the wrong destination. Receiving such an entry does not itself show that the wallet's keys have been stolen.
A practical reading of the alert
A lookalike warning is a request to verify the recipient, not a complete investigation into that address. A first-time recipient is not automatically malicious. Obtain the full address from an independently verified source and compare it with the final confirmation screen, including the middle characters. For recurring payments, record a verified recipient through the wallet's supported address-book workflow. Product detection is an additional checkpoint; a clean-looking transaction history should not become the sole source of a payment address.
Source and review date
MetaMask — original source. Source published: 2026-06-17. Source checked: 2026-10-23.
This is an original Wallet Beep editorial summary. Consult the linked source for its full context and any later updates.