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Web3 Cybersecurity

Definition ∞ Web3 cybersecurity encompasses the practices, technologies, and strategic approaches utilized to protect decentralized applications (dApps), smart contracts, blockchain networks, and user assets within the Web3 ecosystem. It addresses distinct security challenges arising from decentralization, immutability, and the open-source nature of many Web3 protocols. This field aims to prevent exploits, fraud, and unauthorized access. It is crucial for the digital economy’s integrity.
Context ∞ Web3 cybersecurity is a rapidly evolving and critical area frequently highlighted in cryptocurrency news, especially as exploits of decentralized finance (DeFi) protocols and non-fungible token (NFT) platforms continue. Discussions often center on the importance of smart contract auditing, bug bounties, and robust protocol design to mitigate risks. The ongoing challenge is to construct secure and resilient decentralized systems while preserving their core principles.

A translucent blue hardware wallet, featuring a smooth, rounded chassis, securely encapsulates cryptographic primitives. Two clear, tactile interface elements, potentially for multi-signature transaction confirmation or seed phrase recovery, protrude from its surface. A dark rectangular port, likely for USB connectivity or data transfer, is integrated into the side. This device symbolizes robust cold storage solutions for private keys, ensuring enhanced blockchain security and self-sovereign digital identity within the Web3 ecosystem, facilitating secure asset custody and tokenization.

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Mobile Malware Uses OCR to Steal Wallet Seed Phrases from Screenshots

The SparkCat and SpyAgent malware strains weaponize Optical Character Recognition to exploit the human layer, reading and exfiltrating private keys stored as device images.