Firefox reduces browser fingerprint uniqueness after large user study
Protections in Firefox 145, measured with nearly 25 million users, cut unique fingerprints; a CCS 2026 paper documents the method.
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11 stories, newest first · one card per story
Stories tagged #fingerprinting
SkillCODER fingerprints LLM agent skills for copyright and buyer attribution
Across three domains, six models and three frameworks, owner verification reached 99.2% and buyer Top-1 attribution 99.3%.
AgentTrace fingerprints black-box LLM agents from execution traces
Markov models of repair sequences reach 96.0% attribution accuracy and separate Llama-3 8B from 70B under spoofing.
VirusTotal Adds Scanning for Public IPv4 Space to Expose C2 Servers and Malware Infrastructure
VirusTotal now scans public IPv4 daily, recording ports, banners, and fingerprints to surface C2 infrastructure.
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APPLE-SA-09-14-2026-9 Safari 27
Apple's Safari 27 update fixes a flaw letting a malicious site detect installed apps.
Adaptive Traffic Camouflage: Causal and Resource-Aware Defense Against IoT Fingerprinting
A causal IoT traffic-camouflage defense cuts fingerprinting Macro-F1 by up to 43.5% with limited bandwidth cost.
From Bits to Beliefs: Recoverable Semantic Fingerprints for Black-Box Verification of Large Language Models
SimPrint embeds recoverable semantic fingerprints in open-weight LLMs, enabling black-box ownership verification that survives fine-tuning, pruning, quantization and merging.
Inference-Engine Fingerprinting Attacks are Practical: Exploring Model-Driven Environmental Discovery, Exploitation, and Escape
Researchers show misaligned LLMs can fingerprint inference engines like vLLM and SGLang via output tokens alone and execute a proof-of-concept bare-metal exploit chain.
Fingerprinting Multimodal Large Language Models
Researchers introduce AttnPrint and DistillTrace, fingerprinting and black-box auditing methods that detect multimodal LLM derivative models and unauthorized distillation across 19 architectures.
Hardware Fingerprinting FTQC via Quantum Decoder Timing
Quantum decoder timing on IBM Heron processors forms a side channel enabling device fingerprinting with 89% accuracy and workload inference.
Inaudible sounds used to fingerprint browsers catch AliExpress red-handed
AliExpress was caught using inaudible audio signals to fingerprint visitors' browsers, an outdated but still-active cross-session tracking technique.