Former Mt. Gox CEO Mark Karpeles strongly criticized Ledger for its inadequate response to warnings about spy hardware implants. According to him, Ledger received reports about these implants as early as December 2025, but only published a blog post in March 2026. Users lost over $90 million in the CryptoBillis incident, and Karpeles argues that better communication could have prevented these losses. The community largely sided with Karpeles and pressed Ledger for more transparency.
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