Ethereum Dust Attacks Surge After $50M USDT Loss

Ethereum users are facing a sharp rise in address-poisoning, also called dusting, attacks after the Fusaka upgrade lowered transaction costs on the network. Researchers cited by Whale Alert said this activity climbed from about 30,000 transactions per day before Fusaka to roughly 167,000 per day afterward, with peaks near 510,000. That supports a clear warning for Ethereum users, even though the available evidence does not confirm the stronger claim of a 612% jump in USDT-specific attacks.

The basic mechanic is simple: attackers send tiny transfers from wallet addresses designed to resemble a legitimate destination. If a user later copies the lookalike address from transaction history instead of verifying it independently, funds can be sent straight to the attacker. Whale Alert linked the post-Fusaka surge to sharply lower gas fees, which made it cheaper to run poisoning campaigns at much larger scale. The same report said losses tied to the pattern exceeded $63 million in the two months after the upgrade, compared with $4.9 million in a comparable earlier period.

Ethereum dust attacks accelerated after Fusaka

The strongest verified data in this story is broad Ethereum address-poisoning activity, not a proven USDT-only spike. According to Whale Alert, average daily dust transactions rose to about 167,000 after Fusaka from around 30,000 before the upgrade. At the high end, daily volume reportedly approached 510,000 transactions, showing how cheaply attackers could flood wallets with convincing bait after Ethereum fees fell.

That distinction matters. The available reporting supports a major increase in Ethereum dusting and address poisoning overall, but not the exact headline figure of a 612% jump tied specifically to USDT. For readers, the practical takeaway is the same: lower network costs appear to have made wallet-history scams cheaper to execute and harder to ignore.

How a poisoned address led to a nearly $50 million USDT loss

A high-profile example showed how damaging a single copy-paste mistake can be. Cointelegraph reported that on December 20, 2025, a user lost 49,999,950 USDT after sending funds to a poisoned address that resembled the intended destination. The report said the victim first sent a small test transaction to the correct wallet, then minutes later copied the malicious address from transaction history and sent the full amount there instead.

Address poisoning works because wallet users often check only the start and end of an address. In the same Cointelegraph report, SlowMist researcher Cos said the malicious address matched because “the first 3 characters and last 4 characters are the same.” After the transfer, the attacker reportedly swapped the stolen USDT into ETH and moved part of the funds through Tornado Cash, underscoring how quickly stolen assets can be laundered once a poisoned transfer succeeds.

What Ethereum users should check before moving USDT or ETH

The main defense is procedural, not technical. Users moving USDT or ETH should verify the full destination address every time rather than trusting recent transaction history or matching only a few leading and trailing characters. The nearly $50 million loss shows that a small test transfer is not enough protection if the final address is copied from a poisoned entry afterward.

For higher-value transfers, a safer pattern is to confirm the destination through an address book, a trusted saved contact, or an out-of-band check with the recipient before sending the main amount. That matters more now because the broader environment appears worse: Whale Alert said Ethereum dusting losses topped $63 million in the two months after Fusaka, suggesting the scam is scaling alongside lower transaction costs.

For now, the evidence supports a cautious conclusion. Ethereum address-poisoning attacks have risen sharply, and the documented USDT theft shows how costly a single mistake can be. What has not been firmly established is the exact 612% figure in the original headline, so the safer reading is that Ethereum users should treat all recent wallet-history entries with skepticism, especially when moving stablecoins or large ETH balances.