內容簡介
Human Verification Brain Puzzle For Login Security Guard 外掛透過簡單的 3×3 拼圖取代傳統的 CAPTCHA，增強 WordPress 登入頁面的安全性。使用者必須正確解答拼圖，才能啟用登入按鈕，並且答案會在伺服器端進行驗證，確保安全性。
【主要功能】
• 3×3 拼圖替代傳統 CAPTCHA
• 伺服器端答案驗證，無法繞過
• 6 種隨機拼圖變體
• 客戶端即時反饋，錯誤單元格高亮
• 完全可存取，支援鍵盤導航
• 無需外部請求，輕量化設計
外掛標籤
開發者團隊
② 後台搜尋「Human Verification Brain Puzzle For Login Security Guard」→ 直接安裝（推薦）
原文外掛簡介
Human Verification Brain Puzzle For Login Security Guard replaces the traditional CAPTCHA with a lightweight, accessible 3×3 puzzle on the WordPress login page. Users must correctly complete the puzzle before the Log In button becomes active. The answer is also verified server-side, so it cannot be bypassed by disabling JavaScript.
How it works
A random 3×3 puzzle is displayed on the login page.
Each row and each column must contain the digits 1, 2, and 3 exactly once.
Click (or tap) an empty cell to select it, then pick a number from the picker — or press 1, 2, or 3 on your keyboard.
Once the puzzle is solved correctly, the Log In button becomes clickable.
The answer is validated server-side on submission for extra security.
Features
6 built-in puzzle variations chosen at random each visit.
Client-side validation with instant feedback (wrong cells highlighted in red).
Server-side answer verification — cannot be bypassed without JavaScript.
WP nonce protection against CSRF attacks.
Accessible: full keyboard navigation, ARIA roles and labels, aria-live status region.
No external requests — no JavaScript frameworks or CDN dependencies.
Tiny footprint: one CSS file, one JS file, one PHP class.
Fully translatable via standard WordPress i18n functions.
Matches native WordPress login page styling.
Works on the standard wp-login.php screen, the WooCommerce “My Account” login form, and the MemberPress login form.
Privacy
This plugin is stateless — it does not use PHP sessions, cookies, or any database storage. The puzzle shown to a visitor is bound to a signed WordPress nonce embedded in the form itself. No personal data is stored or transmitted to third parties.
