• Ledger Donjon has recognized microcontroller vulnerabilities in Trezor Secure 3 and Secure 5 {hardware} wallets.
• Trezor patched the defects and ensured that the consumer fund remained protected.
• The findings increase considerations about cryptographic operations outdoors of the safe components.

Ledger safety professional Ledger Donjon has found some severe flaws in a few of Trezor’s {hardware} wallets, Secure 3 and 5.

In accordance with Ledger, this enables an attacker to compromise the consumer’s crypto property through voltage glitching methods. This can be a {hardware} assault that bypasses safety by destroying the system’s energy provide and inflicting errors.

The safe components of Trezor are designed to guard in opposition to such bodily assaults, however design flaws can enable well-equipped hackers to change the software program and remotely entry consumer funds. This can be a severe concern for many who retailer nice worth in these units.

Regardless of Trezor including safety layers like firmware integrity checks, Ledger Donjon’s investigation means that refined attackers can nonetheless discover methods round them.

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This highlights deeper considerations concerning the encryption course of outdoors of the safe components and the fixed want for broader safety enhancements in {hardware} wallets.

Trezor response: Concentrate on the availability chain

Trezor responded shortly to Ledger’s findings. Whereas acknowledging the microcontroller vulnerability of the SAFE 3 system, the corporate stated that firmware fixes are presently unavailable. Nevertheless, Trezor reassured customers that their funds are protected and highlighted multi-layer provide chain assault protection for many who are buying from official sources.

“Your funds are protected and you do not have to take any motion. Ledger Donjon has reused beforehand identified assaults to bypass a number of the measures in opposition to provide chain assaults at Trezor Safe3. However, customers who buy from official sources are fully protected.”

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Ledger argues that its analysis goals to strengthen cryptographic ecosystems and isn’t restricted to exposing rivals’ vulnerabilities. By working with Trezor and different pockets suppliers, the corporate says it hopes to lift safety requirements and maintain consumer property protected.