AI Security Guard

AI Security Guard checks text in the extension composer. The extension's screens, buttons, and guidance are currently in Korean. It shows a masked preview for patterns it classifies as an email address, phone number, card number, resident registration number, API key, token, password, or database URL. The supported pages are ChatGPT, Claude, and Gemini. The check runs in the extension. The extension does not upload the checked text to its own server. The confirmed result is placed in the site composer only after the user presses apply. The extension does not press the site's send control. Detection can miss values. Text typed directly into the site composer can be read by that site, and this extension does not block the request made during that typing. After text is placed in the composer, the site can read or send it. How to use it: open the extension composer from the popup on a supported site tab, check the text, review the preview, and place only the confirmed result in the composer. The user sends it from the site if they choose to.