AI Sentinel — Data Breach & Privacy Alerts

Warns you if a site's been breached, flags sensitive data before you send it, and watches AI replies for leaks.

AI Sentinel is a free privacy tool that watches out for you in two places most people never think to check: the websites you visit, and the AI chats you use. WHAT IT DOES 🛡️ Site breach alerts Checks the site you're on against Have I Been Pwned, a well-known public database of data breaches. If the site's ever had one, you'll see a plain- language heads-up what was exposed, and when so you know if it's worth changing a reused password. ⚠️ Sensitive info warnings If you're about to type or paste a credit card number, Social Security Number, or API key into any web form or AI chat box, AI Sentinel gives you a quick heads-up before you hit send so you can double-check first. 🤖 AI response watchdog On AI chat sites like ChatGPT, Claude, and Gemini, AI Sentinel also watches the AI's own replies. If a response contains something that looks like leaked sensitive data you didn't share yourself, you'll get an alert. PRIVACY, BUILT IN FROM THE START - Nothing you type is ever stored only the category of what was flagged (like "credit card number"), never the actual number or text. - Everything is stored locally on your device. Nothing is uploaded to any server we run because we don't run one. - The only outside request made is a domain-name lookup to Have I Been Pwned, to check a site's breach history. No personal data is ever sent. - No ads, no analytics, no tracking, no data sales. Ever. Full privacy policy: https://sites.google.com/view/ai-sentinel-privacy-policy/home WHO IT'S FOR Built for anyone who wants a quiet, plain-language safety net while browsing and using AI tools, no security background needed.