Why are hardware wallet supply chain risks so significant?
The core security promise of a hardware wallet is:
The private key never leaves the Secure Element. But supply chain attacks bypass this promise—the attacker doesn’t tamper with the chip itself, but instead interferes with the device at any point between the factory and the user.

Risk mitigation advice: If you’re not technically savvy, consider keeping your assets in an exchange’s wealth management product.

Risk mitigation priorities:
• Buy directly from the official website only. Avoid third-party distributors, third-party Amazon sellers, and brick-and-mortar stores.
• When you receive the device, check the packaging for signs of resealing and make sure the shrink wrap is intact.
• When setting it up, preferably do so without an internet connection or phone nearby, then immediately transfer a small amount to test and verify it.

Additional protection:
• After purchasing, open the device for inspection as soon as possible (or have a professional do it). Pay particular attention to whether there are any extra circuit boards under the screen or next to the battery.
• Prefer hardware wallets with simpler designs that are open source and auditable.
• Use a Multi-sig setup for large holdings to avoid a single point of failure.
• Regularly check security advisories from manufacturers and follow supply chain-related news.

Using two or more hardware wallets from different brands in a multisig setup (such as 2-of-2 or 2-of-3) is currently one of the most effective and widely recognized industry methods for defending against supply chain attacks.

For individuals or ordinary large-value self-custody, 2-of-3 is recommended.
For extremely large holdings, shared custody among multiple people, institutions, or family trusts, consider 3-of-5.

$NVDAB $BTC