Blocking Sensitive Data Leaks to GenAI Tools – A Browser Extension

Show HN: Blocking Sensitive Data Leaks to GenAI Tools – A Browser Extension

Blocking Sensitive Data Leaks to GenAI Tools – A Browser Extension is active in the show hn launch space.

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I’m an infosec engineer who noticed a gap in our data loss prevention (DLP) stack: nothing stopped employees from pasting sensitive data—PII, PHI, API keys, passwords—into GenAI tools like ChatGPT. With AI adoption skyrocketing, this felt like a growing risk for compliance and security breaches.I built a browser extension called PromptShield to tackle this. It scans inputs in real-time and blocks 150+ sensitive data types (e.g., credit card numbers, SSNs, credentials) before they reach AI platforms. It runs locally on Chrome/Edge, with regex-based detection and minimal latency. No data leaves the client, addressing privacy concerns. Comptetes with other DLP solutions but is lightweight, easy

Blocking Sensitive Data Leaks to GenAI Tools – A Browser Extension is positioned in show hn launch, a segment that rewards a clear, focused offering.

The company is listed at the Show HN launch stage of development.

Website: promptshield.cloud/The