Trezor Data Breach Widens: 67,000 New Customers Exposed as Chain-Off Data Vulnerabilities Reshape Hardware Wallet Trust

The announcement landed quietly on industry wires and security forums alike: approximately 67,000 new Trezor customers now sit in the crosshairs of potential targeted attacks. Yet what stands out when one traces the actual data flow is not a headline-grabbing compromise of private keys or seed phrases. Instead, it is the quiet evaporation of personal information that has already begun its slow process across the hardware wallet sector. Code is the oracle; data is the only scripture. In this case, the oracle transmitted only partial signals while the underlying ledger of user records continued to accumulate far beyond any contractual boundary. The first wave in early 2024 exposed records traceable to 2019. Now, with the second wave, the total affected population crosses 133,000 when partial overlaps are accounted for. What follows is not panic but a forensic audit of how a single manufacturer’s supply chain decision created an unexpected ripple in self-custody infrastructure.