Binance Co-Founder CZ Advocates for Tamper-Evident Hardware Wallets

Background

The incident in question involved Ledger devices sold through CryptoBilis, a reseller based in Southeast Asia, which reportedly resulted in losses of approximately $86 million. The devices were sold primarily in Bitcoin, Ethereum, and TRON.

CZ's Proposal

Changpeng Zhao, co-founder of Binance, has proposed that all hardware wallets should come with see-through cases. This is in response to the recent tampering-detection tool called tampered.app, which flags anomalies in hardware wallets from brands including Ledger, OneKey, and Trezor.

Isolated Incident or Systemic Flaw?

Zhao did not use the moment to pile on Ledger. He characterized the problem as likely isolated and connected to one vendor. The weak link, if his read holds, was the path the device took to reach the buyer, not the device design itself.

Transparency and Security Measures

Zhao also reaffirmed his support for hardware wallets and self-custody more generally. He pointed to investments by YZi Labs in several wallet products, including OneKey, SafePal, and Trust Wallet. His argument was that different wallets fit different users, depending on their risk profiles.

Existing Solutions

A prototype called the Crystal wallet already uses a transparent epoxy casing. Its internal components are sealed in resin and fully visible from the outside.

Implications

For users, the immediate lesson is less about casing and more about sourcing. The suspected attack centered on one reseller, which puts a spotlight on buying devices through channels you can trust. Tools like tampered.app add another layer. They give buyers a way to check for anomalies before trusting a device with real funds.