现在，谷歌更新了图形验证码解决方案，而CAPTCHA的API已经更新到了V3版，其最大的特色，就是用失真的文本来考验真实用户。 CAPTCHA V3版首要解决的问题就是，让欺骗机器可能性降至最低，甚至不存在。所以，谷歌在这个版解决方案中，试图借助各种信号来确定 ...

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CAPTCHAs are a common test on the web and are designed to differentiate between actual users and bots. Google today introduced reCAPTCHA v3, hoping to reduce the number of challenges a user might see.