Scrapers sometimes fight back with software that deciphers captchas.
信息搜集公司有时用能破译验证码的软件予以还击。
From online check-outs to banking login screens, sites today use tools like captchas and two-step verification to confirm a consumer's identity.
如今，从在线退房到网银登陆，网站都可以用验证码和两步验证来确认用户的身份。
This means designers of CAPTCHAs cannot simply increase the amount of distortion to foil attackers.
这意味着验证码的设计者们不能仅靠增加文字扭曲程度来打击攻击验证系统的人。
The results suggest that the method can crack nearly half of all CAPTCHAs and one-third of ReCAPTCHAs.
测试结果表明该算法可以破解近1/2的CAPTCHA和1/3的ReCAPTCHA。
Mr Hughes, along with many others in the field, thinks the lifespan of text-based CAPTCHAs is limited.
Hughes先生和许多这一领域的其他专家都认为，文本形式的验证码寿命有限。
Additionally, some visually impaired users have found certain kinds of distorted CAPTCHAs difficult to read.
一些视障用户对某些扭曲的CAPTCHAs难以阅读。
Dr Von Ahn thinks it will be possible for software to break text CAPTCHAs most of the time within five years.
vonAhn博士认为，五年之内用软件破解文本验证码将可能不再罕见。
Keep in mind that things like Captchas are barriers to user interaction and will likely degrade the user experience.
请记住，像Captchas这样的东西是用户交互的障碍，并且可能会降低用户体验。
Luis von Ahn, an assistant professor at Carnegie Mellon who was part of the original CAPTCHA team, estimates that people fill out close to 200 million CAPTCHAS a day.
卡内基·梅隆大学助理教授LuisvonAhn曾是CAPTCHA小组的成员，他估计每天约有2亿个CAPTCHA被用户填写。
But if CAPTCHAs are broken it might not be a bad thing, because it would signal a breakthrough in machine vision that would, for example, make automated book-scanners far more accurate.
而验证码系统被破解倒也未尝不是一件好事，因为这标志着机器视觉取得突破，或许，自动书刊扫描系统将由此变得远比现在精准。
But if CAPTCHAs are broken it might not be a bad thing, because it would signal a breakthrough in machine vision that would, for example, make automated book-scanners far more accurate.
而验证码系统被破解倒也未尝不是一件好事，因为这标志着机器视觉取得突破，或许，自动书刊扫描系统将由此变得远比现在精准。
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