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PIN Code

Definition ∞ A PIN Code is a short sequence of numbers used as a personal identification number to authenticate a user’s identity. It serves as a basic form of access control for devices and services. While simple, PIN codes are a common first layer of security for many digital applications and hardware.
Context ∞ PIN codes are frequently mentioned in the context of securing cryptocurrency wallets and exchanges, particularly for user authentication on mobile applications or hardware devices. Discussions often arise regarding the adequacy of short PINs against sophisticated guessing attacks and the importance of combining them with other security measures. News alerts may caution users about compromised devices or phishing attempts targeting PIN credentials.

A complex arrangement of smooth, glossy tubes in varying shades of blue and metallic silver intertwines, symbolizing the intricate decentralized ledger technology ecosystem. At its core, a sophisticated metallic component with blue internal pins represents a consensus mechanism facilitating cross-chain communication and interoperability. These interconnected elements illustrate the foundational protocol layering essential for robust digital asset infrastructure, ensuring efficient node synchronization within a distributed network environment.

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Tangem Wallet PIN Brute Force Vulnerability Uncovered

A critical vulnerability in Tangem cold wallet cards allows attackers to bypass PIN attempt limits via a "tearing attack," enabling brute force theft.