Re: HUMAN CHECK without url/session cookie/hidden input, etc.

I've already checked CAPTCHA thing. I have no clue how server remembers the image. Imagine that you open two browser pages then go to captcha page. You see two diffrerent numbers at both browsers. How does server decide which connection established with two or more different browser pages (in this sample)? Is there any hidden browser ID behind the HTTP protocol? I repeat url is: https://nokiags.wdsglobal.com/bookmarkmanual?contractId=191&phoneId=408&captchaEnabled=true&step=details.vm&bookmarkManualName=&bookmarkManualURL=&captchaKey=&mobileNumber=&siteLanguageId=118 "Ryan A" <ryan@coinpass.com> wrote in message news:000301c53898$4b19be90$2d80aa51@lp1wmxd2osbwee... > check up on CAPTCHA on google or your favourite search engine > > -Ryan