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Google's ReCAPTCHA Turns “Invisible,” Will Separate Bots From People Without Challenges

posted by CoolHand on Friday March 10 2017, @08:05PM   Printer-friendly
from the ai-discrimination dept.

MrPlow writes:

Submitted via IRC for Runaway1956

The old reCAPTCHA system was pretty easy—just a simple "I'm not a robot" checkbox would get people through your sign-up page. The new version is even simpler, and it doesn't use a challenge or checkbox. It works invisibly in the background, somehow, to identify bots from humans. Google doesn't go into much detail on how it works, only saying that the system uses "a combination of machine learning and advanced risk analysis that adapts to new and emerging threats." More detailed information on how the system works would probably also help bot-makers crack it, so don't expect details to pop up any time soon.

[...] When sites switch over to the invisible CAPTCHA system, most users won't see CAPTCHAs at all, not even the "I'm not a robot" checkbox. If you are flagged as "suspicious" by the system, then it will display the usual challenges.

Source: https://arstechnica.com/gadgets/2017/03/googles-recaptcha-announces-invisible-background-captchas/

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  • (Score: 0) by Anonymous Coward on Friday March 10 2017, @08:56PM (2 children)

    by Anonymous Coward on Friday March 10 2017, @08:56PM (#477521)

    Browsing through Tor with Javascript turned off, I've noticed that, for a few sites, Cloudflare prompts me to enable Javascript. For many sites, Cloudflare shows a ReCAPTCHA form. I assume that has to do with the service level and/or the site owner's decision. I've never seen Cloudflare just throw up a "403 Forbidden". There may even be some sites that are on Cloudflare that I was allowed to browse, and I didn't notice that they were on Cloudflare because there was no challenge.

    When I visit Google's sites, I get either a textual CAPTCHA or just a flat 403. In light of this story I expect my experience there to stay the same: using an onion proxy will still be considered suspicious.

  • (Score: 0) by Anonymous Coward on Friday March 10 2017, @09:59PM (1 child)

    by Anonymous Coward on Friday March 10 2017, @09:59PM (#477555)

    I've gotten a 403 from using Lynx on discogs.

    • (Score: 0) by Anonymous Coward on Friday March 10 2017, @10:06PM

      by Anonymous Coward on Friday March 10 2017, @10:06PM (#477558)

      That's shameful. However www.discogs.com resolves to 216.151.17.130 which is not a Cloudflare IP address (it belongs to Opus Interactive).