Changpeng Zhao, Binance co-founder, has proposed that hardware wallets should eventually ship with transparent cases to help users identify signs of tampering. The suggestion came on October 14, 2026, in response to a new tampering-detection tool called tampered.app.
The timing followed reports of suspected supply-chain tampering involving Ledger devices sold through CryptoBilis, a Southeast Asian reseller. The incident was associated with losses of approximately $86 million, primarily in Bitcoin, Ethereum, and TRON. Ledger is investigating both the suspected tampering and user claims of losses.
Zhao characterized the problem as isolated to a single vendor rather than a systemic flaw in Ledger's products. He suggested the weak link was the distribution channel rather than the device design itself. Zhao reaffirmed his support for hardware wallets and self-custody, noting that YZi Labs has invested in several wallet products including OneKey, SafePal, and Trust Wallet.
The see-through wallet concept already exists in prototype form. The Crystal wallet uses a transparent epoxy casing with internal components sealed in resin and visible from outside.
For users, the immediate consideration centers on purchasing devices through trusted channels. Tools like tampered.app provide a way to check for anomalies before entrusting a device with funds. However, transparent cases offer limited benefit unless users can identify suspicious modifications on circuit boards and other components.
The outcome of Ledger's investigation will be significant. If the problem is confirmed to be limited to CryptoBilis, the framing of an isolated vendor issue strengthens. A broader finding would shift the conversation beyond case design to more fundamental security concerns.
