Last updated: 2026-06-21.
AEGIS is a browser extension that protects you from prompt-injection attacks on AI assistants. It is built privacy-first: the content you type or paste is scanned on your own device and never leaves your browser.
If — and only if — you turn on "Help improve detection", AEGIS sends anonymous, content-free signals to help us tune detection quality: which detection rule(s) matched (identifiers only), the verdict and a confidence number, and whether you chose to send anyway, keep safe, or redact.
They never contain your message text, the page content, the site you were on, your identity, or any personal data. You can turn this off at any time in the popup, and nothing is collected while it is off.
AEGIS periodically downloads a digitally signed detection ruleset so protection stays current. This is a one-way download of a public file; no information about you is sent beyond what any file download necessarily involves.
AEGIS requests only storage (local settings) and alarms (the periodic ruleset check), plus access to the specific AI assistant sites it protects (ChatGPT, Claude, Gemini, Copilot, Perplexity). It does not access your browsing history, other tabs, cookies, or network traffic.
If you upgrade to a paid plan, payment is processed by our payment provider (Stripe). AEGIS does not see or store your card details. We store only whether your plan is active.
We do not sell your data. We do not share personal data with third parties. There is no advertising and no cross-site tracking.
Questions: tapodimate0@gmail.com