{"data":{"id":"ff13415c-0162-4103-8077-30ef328582f5","title":"Fingerprinting the Dispatchers behind Distributed Model Extraction","summary":"Researchers show that API distillation campaigns, which spread model-stealing requests across thousands of load-balanced accounts, can be linked through request timing even when content classifiers miss them. Using arrival and stream completion timestamps from a 20 percent seed set, the analysis ranks the remaining accounts of a campaign with 0.92 to 1.00 AUC within 20 minutes across thousands of production accounts. Pinning keys evades this detection but can severely throttle throughput when quotas bind.","solution":"N/A -- no mitigation discussed in source.","labels":["research","security"],"sourceUrl":"https://arxiv.org/abs/2611.06661v1","publishedAt":"2026-11-04T15:36:56.000Z","cveId":null,"cweIds":null,"cvssScore":null,"cvssSeverity":null,"severity":"info","attackType":["model_theft"],"issueType":"research","affectedPackages":null,"affectedPackageNames":null,"affectedPackageRefs":null,"affectedVendors":[],"affectedVendorsRaw":[],"classifierModel":"claude-haiku-5-5","classifierPromptVersion":"v4","summaryPromptVersion":"v2","headline":null,"headlinePromptVersion":null,"cvssVector":null,"attackVector":null,"attackComplexity":null,"privilegesRequired":null,"userInteraction":null,"exploitMaturity":null,"epssScore":null,"epssCheckedAt":null,"kevDateAdded":null,"advisoryAliases":null,"affectedPackagesSource":null,"affectedPackagesCheckedAt":null,"patchAvailable":null,"disclosureDate":"2026-11-04T15:36:56.000Z","fixReleasedAt":null,"daysToFix":null,"fixCheckedAt":null,"capecIds":null,"crossRefCount":0,"attackSophistication":"advanced","impactType":["confidentiality"],"aiComponentTargeted":"api","llmSpecific":false,"classifierConfidence":0.9,"researchCategory":"preprint","atlasIds":null}}