在下方的文本框输入你的验证码。
Enter the unique verification code in the verification code field below.
然后这个图片以常规方式显示为验证码。
验证码还有问题，什么时候能够恢复正常？
There are problems with receiving SMS verification code. When will it work properly?
只要输入验证码，这本书就能安全地发送到你的移动设备里。
Just type in the verification code and the book is securely transmitted to your mobile device.
也许通过验证码或其他措施可以有效防止类似问题。
Perhaps Captcha or another security measure to prevent such spamming will be instituted to prevent any such issues.
信息搜集公司有时用能破译验证码的软件予以还击。
Scrapers sometimes fight back with software that deciphers captchas.
可能你在其它网站注册时或者在网上买票时就填过验证码了。
You have likely seen this before when signing up for websites or buying tickets online.
即便如此，研究人员已经把目光投向文本基础的验证码之后了。
Even so, researchers are already looking beyond text-based CAPTCHAs.
用更通用的错误信息来阻断这种攻击，可能需要输入一个验证码。
Fend them off with more generic error messages and possibly require to enter a CAPTCHA.
每一个未知词作为验证码呈现给不同用户数次，确保它被正确辨认。
Each unknown word is presented as a CAPTCHA several times, to different users, to ensure that it has been read correctly.
此外，在某一个ip地址多次登陆失败之后你可以要求输入一个验证码。
Moreover, you can require to enter a CAPTCHA after a number of failed logins from a certain IP address.
理想的情况下，使用基于哈布的消息验证码(HMAC)，因为它最安全。
Ideally, use hash-based message authentication code (HMAC) because it's the most secure.
他举了一个例子：在一个验证码中，每个字母都是由一定数量的像素组成的。
He gives an example: a CAPTCHA in which each letter was always formed out of the same number of pixels.
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。
Dr Von Ahn thinks it will be possible for software to break text CAPTCHAs most of the time within five years.
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。
This means designers of CAPTCHAs cannot simply increase the amount of distortion to foil attackers.
有时候腾讯就是那么不给面子，想把已经分手的他拉黑，还要半路冲出个验证码。
Sometimes tencent is so not to lose face, want to have split up, and he pulled out a black halfway verification code.
—一个验证码是质问-响应的测试以便于确定这个响应是不是被一个计算机产生的。
A CAPTCHA is a challenge-response test to determine that the response is not generated by a computer.
一些验证码之类的东西或许会起作用，比如社交网络上更为严格的个人默认值设置。
A few fiddles might help, such as tougher default privacy Settings on social networks.
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。
Mr Hughes, along with many others in the field, thinks the lifespan of text-based CAPTCHAs is limited.
更妙的是，这一系统已经证明其在抵御攻击方面比其他类型的验证码具有更加卓越的性能。
Even better, the system has proved to be far better at resisting attacks than other types of CAPTCHA.
当你需要阅读网页的信息时，你必须输入法密码、验证码，然后确认页面上你想要删除的信息。
Once you've read the information on the page, you have to enter your password, a captcha code and then confirm that you want to delete your account.
当你需要阅读网页的信息时，你必须输入法密码、验证码，然后确认页面上你想要删除的信息。
Once you've read the information on the page you have to enter your password a captcha code and then confirm that you want to delete your account.
当扫描仪发现无法识别的单词时，它就自动地将其转变为验证码，并将其发布到网页上需要的位置。
When its scanners find a word they can't read, they automatically turn it into a CAPTCHA that gets exported to a website in need of one.
当扫描仪发现无法识别的单词时，它就自动地将其转变为验证码，并将其发布到网页上需要的位置。
When its scanners find a word they can't read, they automatically turn it into a CAPTCHA that gets exported to a website in need of one.
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