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The suspicion is now official, and for Ledger it is a heavy blow: The French hardware wallet maker has confirmed that one affected customer’s device contained an “unauthorized hardware implant.” Ledger’s support team made the announcement on X. It is now clear that at least some of the devices used to rob customers in Southeast Asia of crypto assets worth tens of millions of dollars had been physically tampered with.

What a Hardware Implant Is

A hardware implant is an additional electronic component that is secretly built into a device after the fact. It leaves the software untouched and grabs data directly from the electronics. For a hardware wallet, that is especially…