Definition ∞ Wallet key exfiltration refers to the unauthorized extraction and transfer of private cryptographic keys from a user’s digital wallet. This malicious act allows an attacker to gain complete control over the associated digital assets, enabling them to drain funds or impersonate the owner. It typically occurs through malware, phishing attacks, or exploiting software vulnerabilities. Protecting against key exfiltration is critical for securing digital asset holdings.
Context ∞ Wallet key exfiltration remains one of the most significant and direct threats to digital asset security, frequently reported in cryptocurrency theft incidents. News often details sophisticated phishing campaigns or malware strains designed specifically to target private keys. Discussions focus on enhancing wallet security through hardware wallets, multi-signature schemes, and advanced anti-malware solutions to protect users from this critical attack vector.
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