TCI Insights

LLM Obfuscation & Redaction

Risks and techniques around obfuscation, redaction, and privacy in LLM pipelines.

When LLMs Leak: Obfuscation Failures in AI-Assisted Redaction

LLM-powered redaction tools can fail in subtle, dangerous ways — reconstructing supposedly removed PII from context, leaking information through embeddings, or hallucinating redaction where none occurred.

David Greenhill
David Greenhill
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Prompt Injection as a Redaction Bypass

Documents processed through LLM redaction pipelines can contain adversarial text that manipulates the model into preserving sensitive information. This attack vector is unique to AI-powered redaction.

Michael Peterson
Michael Peterson
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Building Trustworthy LLM Redaction Pipelines

LLMs offer powerful contextual PII detection, but only within a pipeline that compensates for their weaknesses. Here's how TCI architects redaction systems that combine LLM intelligence with deterministic guarantees.

David Greenhill
David Greenhill
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