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Sybil attack

TL;DR

Termin z cybersecurity (Douceur 2002, named po Sybil book character z multiple personalities) — atakujący tworzy wiele tożsamości, by manipulować reputation systems.

Definition

Termin z cybersecurity (Douceur 2002, named po Sybil book character z multiple personalities) — atakujący tworzy wiele tożsamości, by manipulować reputation systems. W referrali: jedna osoba tworzy 50 kont z różnymi danymi i poleca między nimi tworząc "ring". Detection: graph analysis (kto-poleca-kogo network) — sybil rings tworzą charakterystyczne wzorce densely-connected clusters. Mitigation: identity verification (KYC), unique payment methods, social proof requirements.

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