EIP-7702 Linked to Binance Hack Losses, Not the Breach Itself
Security experts say the Ethereum upgrade didn't enable the Binance attack but may have helped attackers circumvent withdrawal protections.
A nuanced picture is emerging from the investigation into a recent hack targeting Binance wallets: the Ethereum Improvement Proposal 7702, a protocol upgrade designed to expand smart contract functionality for standard user accounts, was not the root cause of the breach — but it may have meaningfully worsened the outcome.
Security researchers examining the incident conclude that the attackers possessed the means to drain affected wallets independently of EIP-7702. The upgrade, in other words, was not the door through which they entered. What it may have done, however, is disable or circumvent withdrawal safeguards that would otherwise have limited how much value the attackers could extract before being detected or blocked.
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That distinction carries significant analytical weight. If the upgrade amplified losses rather than caused them, it suggests the vulnerability was pre-existing — potentially rooted in credential compromise, phishing, or social engineering — rather than a flaw introduced by Ethereum's evolving codebase. At the same time, it raises harder questions about whether protocol-level upgrades that expand account programmability are being deployed with sufficient user-facing guardrails, particularly on centralized exchange infrastructure that bridges on-chain and off-chain systems.
EIP-7702, introduced as part of Ethereum's broader push toward account abstraction, allows externally owned accounts to temporarily behave like smart contracts during a transaction. The flexibility this enables is real, but so is the expanded attack surface it creates if wallets and exchanges do not adapt their security models accordingly. Defenders and auditors may need to reassess how legacy withdrawal-limit logic interacts with accounts that can now execute arbitrary contract code mid-transaction.
The episode is an early stress test for how the Ethereum ecosystem handles security responsibilities when protocol capabilities outpace protective infrastructure. Continue reading at Cointelegraph.
