prompt-privacy

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Cyber-207 / cyber207_specialized_PII_detection_comparison

Comparing classical ML, neural networks, DistilBERT, and Phi-4 for multilingual PII detection in LLM prompts.

nlp machine-learning ai neural-network berkeley aiml cybersecurity feature-engineering data-privacy model-comparison pii-detection distilbert large-language-models llm-security prompt-privacy

Updated Aug 3, 2026
Jupyter Notebook

5ham5h33r / SilhouetteAI

Star

Browser extension that catches PII in your prompt and lets you redact it before it leaves your machine - local detection, reversible tokenization, zero network calls.

chrome-extension privacy browser-extension data-loss-prevention manifest-v3 pii-redaction llm-security prompt-privacy

Updated Aug 1, 2026
JavaScript

Redact PII in the browser before a prompt ever leaves the machine, then rehydrate the reply locally: 11 entity types, Luhn/SSN/IBAN checksum validation, and a type-checked Egress Guard on the send path. TypeScript. 173 tests, 100% coverage.

privacy typescript browser client-side iban luhn gdpr anonymization pii data-masking pii-detection local-first pii-redaction llm llm-security egress-control prompt-privacy

Updated Aug 15, 2026
TypeScript

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