Here are a few options for the description of the WordPress post_tag “驗證碼” (Verification Code) in Traditional Chinese, catering to different tones and purposes:

**Option 1: Concise & Informative**

* **Description:** 網站、應用程式常用的安全驗證機制，確保使用者身份。
* **Translation:** Common security verification mechanism used on websites and applications, ensuring user identity.
* **Why It Works:** Simple, direct, and clearly explains the purpose of the verification code. Suitable for general audiences.

**Option 2: More Detailed & Beginner-Friendly**

* **Description:** 為了確認您是真人，而非機器人或惡意程式，常會出現的圖像或文字辨識挑戰。 驗證碼有助於保護您的帳戶安全及防止垃圾郵件。
* **Translation:** A challenge, often involving image or text recognition, that appears to confirm you are a real person, not a bot or malicious program. Verification codes help protect your account security and prevent spam.
* **Why It Works:** Explains the purpose of verification codes in a more accessible way, benefits of usage, and target at readers new to technology.

**Option 3: Technical & SEO-Friendly**

* **Description:** 驗證碼 (captcha, verification code) 是網路安全中的重要環節，常用於網站註冊、登入、重設密碼等流程。 確保使用者身份，避免自動化程式濫用。 相關標籤包含 reCAPTCHA、安全性、使用者驗證。
* **Translation:** Verification code (captcha, verification code) is a crucial component of online security, often used during website registration, login, password reset, and other related processes. It ensures user identity and prevents automated program abuse. Related tags include reCAPTCHA, security, user authentication.
* **Why It Works:** Includes relevant keywords like “captcha” (as that’s a common English term users are familiar with), and other related terms for SEO. This option is informative.

**Option 4: Short & Sweet**

* **Description:** 用於確認使用者身分的密碼。
* **Translation:** Passwords used to confirm the user identity.
* **Why It Works:** Clear and direct, which is great for keeping things simple.

**How to Choose:**

* **Audience:** Who are you writing for? If it’s a general audience, option 1 or 2 might be best. If it’s a more technical audience, option 3 could be helpful.
* **Purpose of the Post/Tag:** What is the post about? If the post is about security, option 3 might fit well. If the post is about using a specific verification code, option 2 would be suitable.
* **Length:** WordPress tag descriptions are often truncated. Choose a description that delivers the key information concisely.

**How to Add the Description in WordPress:**

1. **Go to your WordPress admin panel.**
2. **Navigate to Posts > Tags.**
3. **Find the “驗證碼” tag.**
4. **Click “Edit” (or the tag name).**
5. **Locate the “Description” field.** (This may be hidden by default, you can find it in the “Screen Options” in the top right corner. Make sure “Description” is checked.)
6. **Paste your chosen description into the field.**
7. **Click “Update” to save the changes.**

Remember to choose the option that best suits your specific needs and writing style. Good luck!