TAPCHA - a mobile first, non-instrusive and customisable CAPTCHA scheme

“CAPTCHA代表完全自动化公共图灵测试，可以区分计算机和人类。这是一种身份验证测试，用于保护在线服务免受自动滥用导致的网络攻击（例如，密码攻击）或资源浪费（例如，垃圾邮件）。captcha通常与用户相关的在线服务（登录、注册等）以及其他在线通信和交易相关的服务（例如银行、机票预订等）相关联。CAPTCHA服务的核心是它的方案，它定义了挑战以及所需和支持的人类交互。只有做对了，它才能在保护服务的同时留住用户。TAPCHA是一种新的验证码方案，采用“移动优先”的理念，利用认知偏差来解决在线企业和服务提供商面临的以下挑战：他们需要一个有效的CAPTCHA方案来阻止他们的服务被自动滥用，影响其预期用途，导致网络攻击和品牌/声誉损害。他们需要一个移动优先的验证码，很好地适应他们“移动优先”设计的服务（例如，移动应用程序，响应式web应用程序等）。他们需要一种侵入性较低或身临其境的CAPTCHA方案，用户可以轻松完成，以最大限度地提高在线交易。”

"CAPTCHA stands for Completely Automated Public Turing test to tell Computers and Humans Apart. It is a type of authentication test to protect online services from automated abuses leading to cyber attacks (e.g., password attacks) or resource wastages (e.g., spams). CAPTCHAs are often seen in association with user related online services (login, registration etc.) and other online communication and transaction related services (e.g., banking, flight ticket booking etc.).The core of a CAPTCHA service is its scheme which defines the challenge as well as the required and supported human interactions. Only when it is done right, it will protect the services while retaining users. TAPCHA is a new CAPTCHA scheme designed with 'mobile first' initiative and the utilisation of cognitive biases to address the following challenges for online businesses and service providers:1. They need an effective CAPTCHA scheme to stop their services from automated abuses affecting their intended uses, leading to cyber attacks and brand/reputation damage.2. They need a mobile-first CAPTCHA that fits nicely into their 'mobile-first' designed services (e.g., mobile apps, responsive web apps etc.).3. They need a less-intrusive or immersive CAPTCHA scheme that users can easily complete to maximise online transactions."