Researcher says Ledger received reports of hardware implants months ago
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AT A GLANCE
The report said that Ledger had received two reports of tampered devices and confirmed that it was investigating one of them.
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Researcher says Ledger received reports of hardware implants months ago
PANews October 17 reported, citing Cointelegraph, that former Mt. Gox CEO Mark Karpelès said at least two people had already reported to 2025 in December that their devices had been tampered with. Security researcher Joe Grand also said that in Ledger he reported to March 4, 2026 that a Nano X contained a malicious hardware implant, and Ledger confirmed his finding and said it was conducting an internal investigation. The two questioned whether Ledger had failed to issue a timely public warning to customers.Ledger Ledger declined to comment further on how it handled Grand's report and directed the media to its public statement on X.
Mark Karpelès said that at least two people had already reported to 2025 in December that their devices had been tampered with.Ledger
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Joe Grand said that in March 4, 2026 he reported to Ledger that a Nano X contained a malicious hardware implant.
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Ledger confirmed receipt of Joe Grand's finding and said it was conducting an internal investigation.
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Ledger declined to comment further on how it handled Joe Grand's report.
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Mark Karpelès and Joe Grand questioned whether Ledger had failed to issue a timely public warning to customers.
AI-assisted interpretation
The following is analysis, separate from reported facts. Verify important claims independently.
This is a report about suspected tampering with Ledger hardware wallet devices. The report said that two individuals involved had reported to Ledger, one of which involved a Nano X and a malicious hardware implant;Ledger said it was conducting an investigation.
Why it matters to readers
Whether the hardware devices were tampered with could affect users' assessment of device supply-chain and self-custody security, but current evidence does not indicate the scope of the impact or any user asset losses.
If you use a hardware wallet, you should monitor Ledger formal investigation findings, the scope of affected devices, and whether any confirmed asset risk exists.
Risks and unknowns
The scope, source, and affected devices associated with the hardware implants have not yet been determined.
There is currently no evidence confirming user asset losses.
Ledger Investigation results and affected batches have not yet been disclosed.
The relevant claims in the report mainly come from Mark Karpelès and Joe Grand; the details of the incident still await independent technical verification.
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Related concepts
Hardware wallet
A wallet that uses a dedicated physical device to protect private keys and sign transactions.
