---
title: "Hardware Wallet Attestation: How Apps Detect Fakes (PDF)"
url: "https://bip39-phrase.com/list-phrase/why-you-need-a-hardware-wallet-to-protect-2026-04-22/"
language: "en"
updated: "2026-10-20T00:00:00+00:00"
---

# Hardware Wallet Attestation: How Apps Detect Fakes

Learn how companion apps use cryptographic attestation to detect counterfeit hardware wallets, and review the essential supply-chain checklist.

PDF document · Published April 22, 2026 · Updated October 20, 2026 

[ Open the PDF (6 pages, 180 KB) ](/list-phrase/why-you-need-a-hardware-wallet-to-protect-2026-04-22-en.pdf) 

## Contents

1. Cryptographic Attestation Mechanics
2. What Genuine Checks Prove and What They Miss
3. Purchase and Supply-Chain Checklist
4. FAQ
5. Sources
6. Sample sequences of BIP39 words
7. Reading a BIP39 phrase
8. See also

Keywords: 

hardware wallet · cryptographic attestation · supply chain attack · BIP39 · secure element

Topic: 

[Crypto Wallets: Hardware, Software and Multisig](/topics/wallets/)

## Guides on the same subject

- [What Is a Hardware Wallet and How Does It Work? (Ledger, Trezor)](/hardware-wallets-explained/)  
A hardware wallet keeps your private keys on a small device and signs each transaction after you confirm it on its screen. How it works and what it can't stop.
- [What Makes Bitcoin's Price Go Up? Supply, Demand and Macro](/bitcoins-price-go-up/)  
Bitcoin's price rises when demand outgrows a supply capped at 21 million: halvings, ETF and institutional buying, interest rates, liquidity and sentiment.
- [Hardware Wallets Compared: Ledger, Trezor, Keystone and More](/hardware-wallet-comparison/)  
Ledger, Trezor, Keystone, COLDCARD, BitBox, Jade, Passport and Tangem compared: key chips, open firmware, screens, backups and coins, from makers' own specs.

One of the documents in the [Seed Phrase PDF Archive](/list-phrase/), listed on [archive page 10](/list-phrase/10/).