AI Firm Exposes Ledger Bug, CTO Calls It Fear-Mongering After Quiet Fix
An artificial intelligence (AI) security firm went public with a Ledger Ethereum app bug. Ledger says it had already fixed the flaw quietly, two weeks earlier.
Chief technology officer Charles Guillemet called the disclosure fear-mongering. The patch shipped on August 12 with a one-line note and no security bulletin.
What the Ledger Ethereum App Bug Actually Did
Ledger sells one core promise. The screen shows you what you are signing. That promise has a name. Ledger calls it clear signing, and it turns raw transaction code into plain words on the device screen.
TestMachine says it found a way around that. The firm builds an AI agent called Azimuth that hunts exploits in smart contracts. On its own EVMBench benchmark, Azimuth catches 86.3% of known bugs with roughly 2.7% false positives.
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