內容簡介
大部分的驗證碼需要輸入一些隨機生成的字符（有時模糊不清，擺動或者在模糊的背景下）的要求。HumanCaptcha 則生成一個需用邏輯思考回答的簡單問題。HumanCaptcha 比標準的驗證碼更容易使用（許多人難以閱讀或理解）。視力障礙者使用 HumanCaptcha 比基於字符的驗證碼更容易。
** 驗證碼 **
大部分的驗證碼需要輸入一些隨機生成的字符（有時模糊不清，擺動或者在模糊的背景下）的要求。HumanCaptcha 則生成一個需用邏輯思考回答的簡單問題。HumanCaptcha 比標準的驗證碼更容易使用（許多人難以閱讀或理解）。視力障礙者使用 HumanCaptcha 比基於字符的驗證碼更容易。
驗證碼對於提高安全性在多種情況下非常有用，例如：
減少博客中的評論垃圾郵件
許多博客都會遇到提交垃圾評論的程序，通常旨在提高網站的搜索引擎排名。通過使用驗證碼，僅有人類才能在您的博客上發表評論，人們無需在發表評論之前註冊帳戶。
防止郵件地址被網絡爬蟲抓取
垃圾郵件發送者會在網上搜尋以純文字形式呈現的電子郵件地址。驗證碼可以通過要求用戶先解決驗證問題再顯示電子郵件地址，從而隱藏您的電子郵件地址。
防止病毒、蠕蟲和垃圾郵件的擾亂
通過只接受已確定有人類背景的發送計算機發送的電子郵件，驗證碼可以減少電子郵件病毒、蠕蟲和垃圾郵件的可能性。
鳴謝
非常感謝：
MPW D&D 的 TH90 (https://wordpress.org/support/profile/th90) 捷克翻譯檔案（fa_IR）。 語言：波斯語，國家：伊朗。
位於俄羅斯聖彼得堡的 Dayl (http://dayl.ru) 俄語翻譯檔案。 語言：俄語，國家：俄羅斯。
外掛標籤
開發者團隊
原文外掛簡介
Most captchas are based on the requirement to reproduce a number of randomly-generated characters (which are sometimes blurred, jiggled and/or on a fuzzy background). HumanCaptcha generates a simple question which the user must answer using logical thought. HumanCaptcha is much more accessible than standard captchas (which many people find difficult to read or understand). Visually impaired people are much more likely to be able to use HumanCaptcha than a character-based one.
** Captchas **
Most captchas are based on the requirement to reproduce a number of randomly-generated characters (which are sometimes blurred, jiggled and/or on a fuzzy background). HumanCaptcha generates a simple question which the user must answer using logical thought. HumanCaptcha is much more accessible than standard captchas, which many people find difficult to read or understand. Visually impaired people are more likely to be able to use HumanCaptcha than a character-based one.
CAPTCHAs are useful for improving security in a number of situations, for example:
Reducing Comment Spam in Blogs
Most bloggers will have come across programs that submit spam comments, often with the aim of improving the search engine ranking of a website. By using a CAPTCHA, only humans can enter comments on your blog, and people do not need to sign up before they enter a comment.
Protecting Email Addresses From Scrapers
Spammers crawl the web looking for e-mail addresses rendered in text. CAPTCHAs can hide your e-mail address from web scrapers, by requiring users to solve a CAPTCHA before revealing your e-mail.
Deterring Viruses, Worms and Spam
CAPTCHAs may reduce the likelihood of e-mailed viruses, worms and spam, by only accepting an e-mail if it has been established that there is a human behind the sending computer.
Credits
Many thanks to:
TH90 (https://wordpress.org/support/profile/th90) of MPW D&D for the Persian translation files (fa_IR). Language: Persian, Country: Iran.
Dayl (http://dayl.ru) in Санкт-Петербург for the Russian translation files. Language: Russian, Country: Russia.
