captcha

Has reCaptcha been cracked / hacked / OCR'd / defeated / broken? [closed]

天涯浪子 提交于 2019-11-26 14:51:42
Have any programming methods have been used to defeat reCAPTCHA? I'm interested in seeing evidence and potentially demonstrations that reCAPTCHA in particular has been made obsolete by completely automated, humanless methods. To clarify, not looking for reCAPTCHA-cheating solutions that involve humans in any way, whether teams tasked with filling out CAPCHAs, porn-seekers, or Mechanical Turk. I'm also not looking for alternatives to reCAPTCHA, like picking the type of animal, or background fields or javascript trickery. AviD I notice that almost all the answers here relate to the

How do I show multiple recaptchas on a single page?

末鹿安然 提交于 2019-11-26 11:06:07
I have 2 forms on a single page. One of the forms has a recaptcha displaying all the time. The other should display a recaptcha only after a certain event such as maxing out login attempts. So there are times when I would need 2 recaptchas to appear on the same page. Is this possible? I know I could probably use a single one for both, but the way I have the layout, I would much prefer to have 2. Thanks. Update: well I guess it may not be possible. Can anybody recommend another capture library to use side by side with reCaptcha? I really want to be able to have 2 captchas on the same page.

ReCaptcha API v2 Styling

痴心易碎 提交于 2019-11-26 10:17:28
问题 I have not had much success finding how to style Google\'s new recaptcha (v2). The eventual goal is to make it responsive, but I am having difficulty applying styling for even simple things like width. Their API documentation does not appear to give any specifics on how to control styling at all other than the theme parameter, and simple CSS & JavaScript solutions haven\'t worked for me. Basically, I need to be able to apply CSS to Google\'s new version of reCaptcha. Using JavaScript with it

When the bots attack! [closed]

偶尔善良 提交于 2019-11-26 09:23:37
问题 What are some popular spam prevention methods besides CAPTCHA? 回答1: I have tried doing 'honeypots' where you put a field and then hide it with CSS (marking it as 'leave blank' for anyone with stylesheets disabled) but I have found that a lot of bots are able to get past it very quickly. There are also techniques like setting fields to a certain value and changing them with JS, calculating times between load time and submit time, checking the referer URL, and a million other things. They all

Blocking comment spam without using captcha [closed]

空扰寡人 提交于 2019-11-26 03:27:29
What are some non-captcha methods for blocking spam on my comments? Michael Borgwardt In my experience the currently most effective methods are honeypot input fields that are made invisible to users via CSS (best use several different methods, such as visibility:hidden, setting a size of 0 pixels, and absolute positioning far outside the browser window); if they're filled anyway you can assume it's a spambot. This blog describes a rather complex method that I've tried out myself (with 100% success so far), but I suspect that you could get the same result by skipping all the stuff with hashed

Practical non-image based CAPTCHA approaches?

血红的双手。 提交于 2019-11-26 03:15:51
问题 Locked . This question and its answers are locked because the question is off-topic but has historical significance. It is not currently accepting new answers or interactions. It looks like we\'ll be adding CAPTCHA support to Stack Overflow. This is necessary to prevent bots, spammers, and other malicious scripted activity. We only want human beings to post or edit things here! We\'ll be using a JavaScript (jQuery) CAPTCHA as a first line of defense: http://docs.jquery.com/Tutorials:Safer

How do I show multiple recaptchas on a single page?

£可爱£侵袭症+ 提交于 2019-11-26 02:28:40
问题 I have 2 forms on a single page. One of the forms has a recaptcha displaying all the time. The other should display a recaptcha only after a certain event such as maxing out login attempts. So there are times when I would need 2 recaptchas to appear on the same page. Is this possible? I know I could probably use a single one for both, but the way I have the layout, I would much prefer to have 2. Thanks. Update: well I guess it may not be possible. Can anybody recommend another capture library

Blocking comment spam without using captcha [closed]

六眼飞鱼酱① 提交于 2019-11-26 01:13:52
问题 As it currently stands, this question is not a good fit for our Q&A format. We expect answers to be supported by facts, references, or expertise, but this question will likely solicit debate, arguments, polling, or extended discussion. If you feel that this question can be improved and possibly reopened, visit the help center for guidance. Closed 6 years ago . What are some non-captcha methods for blocking spam on my comments? 回答1: In my experience the currently most effective methods are