--- title: GitHub - mohamed--abdel-maksoud/pisiguard: Protect your... description: PISIGuard is a browser extension that protects personally identifiable and sensitive information when chatting with AI platforms like ChatGPT, Claude, and... canonical: https://daily.dev/posts/github---mohamed--abdel-maksoud-pisiguard-protect-your-personal-and-sensitive-info-when-you-chat-wi-gscuzss3r twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: GitHub - mohamed--abdel-maksoud/pisiguard: Protect your personal and sensitive info when you chat with AI | daily.dev og:description: PISIGuard is a browser extension that protects personally identifiable and sensitive information when chatting with AI platforms like ChatGPT, Claude, and... og:url: https://daily.dev/posts/github---mohamed--abdel-maksoud-pisiguard-protect-your-personal-and-sensitive-info-when-you-chat-wi-gscuzss3r og:image: https://api.daily.dev/og/posts/gScuzsS3R.png og:image:alt: GitHub - mohamed--abdel-maksoud/pisiguard: Protect your personal and sensitive info when you chat with AI og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # GitHub - mohamed--abdel-maksoud/pisiguard: Protect your personal and sensitive info when you chat with AI **[Hacker News](https://daily.dev/sources/hn)** · 3 min read · 1 upvotes · 1 comments ## Summary PISIGuard is a browser extension that protects personally identifiable and sensitive information when chatting with AI platforms like ChatGPT, Claude, and DeepSeek. It detects names, emails, phone numbers, passwords, API keys, and more, replacing them with safe placeholders before messages are sent. The AI's response is then automatically restored with the original values. All processing happens locally in the browser — no data is sent to external servers. Available as a Firefox add-on and installable manually on Chrome-based browsers, it requires minimal permissions and has no background processes. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Questions this post answers ### How can I stop AI chatbots like ChatGPT from seeing my personal information such as names, emails, and passwords? A browser extension called PISIGuard detects sensitive data in your messages (names, emails, phone numbers, credit card numbers, passwords, API keys) and replaces it with placeholders before sending to ChatGPT, Claude, or DeepSeek, then restores the real values in the AI's reply. All detection and masking happens locally in the browser with no external server calls, telemetry, or analytics. _daily.dev surfaces tools like this for developers weighing privacy risks in everyday AI chat use._ ### Which AI chat platforms does the PISIGuard privacy extension support? PISIGuard works on ChatGPT, Claude, and DeepSeek. It masks sensitive data client-side before a message is sent to any of these platforms and restores the original values once the reply comes back, with all processing staying on-device rather than routed through an external server. _Developers evaluating privacy tooling for AI workflows can track releases like this via daily.dev._ ## Community discussion Top comments from developers on daily.dev. **@lezli01** · 0 upvotes > In hungarian pisi is pee. ## Similar posts on daily.dev - [privacyshield-ai/privacy-firewall: A local AI-powered DLP solution](https://daily.dev/posts/privacyshield-ai-privacy-firewall-a-local-ai-powered-dlp-solution-fxutaxpyb) · Hacker News · 2 upvotes · 0 comments - [Moxie Marlinspike has a privacy-conscious alternative to ChatGPT](https://daily.dev/posts/moxie-marlinspike-has-a-privacy-conscious-alternative-to-chatgpt-wszv6h7aa) · TechCrunch · 1 upvotes · 0 comments - [The Incognito Mode Lie](https://daily.dev/posts/the-incognito-mode-lie-omgt5xy4b) · DEV · 5 upvotes · 0 comments --- Tags: [#ai](https://daily.dev/tags/ai), [#security](https://daily.dev/tags/security), [#javascript](https://daily.dev/tags/javascript) [View this post on daily.dev](https://daily.dev/posts/github---mohamed--abdel-maksoud-pisiguard-protect-your-personal-and-sensitive-info-when-you-chat-wi-gscuzss3r) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"GitHub - 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