Sinaptic.AI provides a browser extension that prevents accidental leakage of sensitive personally identifiable information (PII) and protected health information (PHI) to AI services such as ChatGPT, Claude, Gemini, Grok, Perplexity, and DeepSeek. The solution operates as a browser extension available for Chrome, Edge, and Safari. The technology uses a hybrid detection engine combining regular expressions and natural language processing to scan user input in real-time before data leaves the browser. It identifies sensitive data types including credit cards, email addresses, and API keys. The system employs smart validation techniques such as the Luhn algorithm for credit card verification and context awareness to reduce false positives. Network interception capabilities allow the extension to block sensitive data transmission at the source by injecting into the page context. The solution provides visual feedback through wavy underlines and tooltips that highlight sensitive data directly in text areas. Users can configure custom exclusion rules for specific URLs or values and choose between monitoring modes. All processing occurs locally on the device with no data sent to external servers. Logs are stored locally with hashed values for security. Sinaptic.AI offers a free Community edition with unlimited PII/PHI scanning, local processing, real-time alerts, custom exclusion rules, and 7-day local log retention. The Enterprise edition adds centralized policy management, SIEM integration with platforms like Splunk and Datadog, SSO and directory sync capabilities, silent installation options, incident reporting dashboards, and source code audit rights. The solution is built on Manifest V3 architecture and is part of the M3 Framework for secure AI adoption.