Edition October 31, 2026

Fireblocks analyzes the Binance wallet breach

Fireblocks argues that the Binance attack exposed the risk of allowing engineering machines to reach wallet-signing authority without an independent security barrier.

The report describes a malicious delegation signed under EIP-7702, rather than a vulnerability in an existing contract. Fireblocks recommends restricting destinations and amounts and requiring multiple administrators to authorize high-risk operations, even when credentials have been stolen. It also recommends balance limits tied to withdrawal needs and caps on automatic wallet replenishment. The article stresses that these safeguards work only with sound configuration and continuing verification.

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