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DCG 201
@dcg201
The @ledgerofficial white hat team discovered a flaw in Tangem cards that makes brute force attacks possible by exploiting vulnerabilities in their secure channel implementation leveraging a “tearing” technique. This allows attackers to bypass the card’s security delay mechanism after failed authentication attempts. The vulnerabilities cannot be patched on existing cards because they’re not upgradable. It is important to note that this attack requires physical access to a Tangem card. https://www.ledger.com/blog-brute-force-attack-tangem @officercia
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