Shared resources can cut the real cost of Sybil identities
Published phone-verification prices overstate per-account cost 1.6 to 4.3 times; a Tor relay-limit change cut modeled attack cost 8 to 72%.
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Published phone-verification prices overstate per-account cost 1.6 to 4.3 times; a Tor relay-limit change cut modeled attack cost 8 to 72%.
Sybil-TraceGuard, a dynamic semi-supervised spatio-temporal GNN, links fragmented Sybil pseudonyms in connected vehicles back to their source attackers.
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