Ledger receives warning of malicious hardware wallet implantation, Mark Karpel è s claims inadequate response

Ledger received multiple reports of malicious implants before the security crisis. Mark Karpel è s stated that at least two people have been contacting Ledger since December 2025 to report that their devices have been tampered with, and Ledger has not issued a public warning. Joe Grand reported a malicious implant to Ledger on March 4, 2026, which was located in the Nano X purchased by Lazada Thailand in August 2025. Ledger confirmed the discovery and conducted an internal investigation, but did not proactively remind the client. Ledger declined to comment on the handling of Joe Grand's disclosure. The Ledger security crisis revealed on October 9th involved the loss of wallet assets sold by CryptoBilis, and Ledger confirmed that a device contained unauthorized implants. Trezor has also received reports of unauthorized sellers tampering with devices.