XKEYCHAINX LABS
Trezor / Public disclosure

Authenticity proofs not bound to individual chips

One valid proof could satisfy checks intended for different chips.

Source date: 2026-08-16 (reported)Reviewed: 11 October 2026

Affected scope

Safe 7 authenticity verification

What the attack requires

Manipulated authenticity proof set.

Response & remediation

What changed

Vendor reports binding each proof to its intended element.

What this finding establishes

Resolved entry; minimum fixed version not specified.