Comments on: The End Of CAPTCHAs As A Security Mechanism?

By: til payday no loan

til payday no loan — Sat, 06 Dec 2008 23:41:43 +0000

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By: Gmail Now A Major Spam Hub | Oragle

Gmail Now A Major Spam Hub | Oragle — Sun, 20 Jul 2008 13:34:53 +0000

[...] pronounced that CAPTCHA’s were dead some weeks ago, as there are now hundreds of thousands of ready-to-go accounts for Gmail, Hotmail [...]

By: Captchas: Crazy Example links

Captchas: Crazy Example links — Sat, 12 Jul 2008 11:48:17 +0000

Captchas: Crazy Example links
http://www.acomputerportal.com/advertising_methods/captchas.html

By: Omega

Omega — Tue, 08 Jul 2008 02:55:10 +0000

Ever seen one of rapidshare’s old captchas? Not only are the letters distorted, half of them have a dog outline on them and the other half have cats on them. You can only enter the four that have a cat on them. Impossible! At least they’ve become more lax on them now…

By: u24

u24 — Mon, 07 Jul 2008 10:40:40 +0000

another reason that captcha is broken: http://www.puremango.co.uk/cm_breaking_captcha_115.php

By: nik

nik — Mon, 07 Jul 2008 08:03:31 +0000

I cant wait till they go away..

By: rons dixon

rons dixon — Mon, 07 Jul 2008 01:57:32 +0000

oh the game of cop and robber. I think no matter what system we come up with, as long as there are “marketers” and i use that term loosely, system such as these will be broken. What we are working on right now for our startup is weighing a couple of things. 1 frequency of signup from a single ip, 2, randomized capcha use of words, puzlles, and trivia questions. 3, email account domain (gmail, hotmail, aol or yahoo). In essence, we are dividing the signup process in two, where we ask for email address first then apply rules based on the above listed.

By: Shai wolkomir

Shai wolkomir — Sun, 06 Jul 2008 21:38:06 +0000

Talk about bad user experience …
It’s indeed a problem that would be solved sooner than later.
It is evident that email is no longer the key drive for Bots
UGC has grown mature enough to take on the new battle of the internet – web spam

By: David

David — Sun, 06 Jul 2008 20:01:38 +0000

My Mom called me the other day because she could not get past the captcha to sign up for a Google account. So I created one for her, and it took me 4 or 5 tires. The hackers have done us a favor by obsoleting this absurd and insane system and forcing companies to come up with a better solution.

By: Neyma Jahansooz

Neyma Jahansooz — Sun, 06 Jul 2008 05:01:37 +0000

As comment #1 states- some CAPTCHA’s are just damn near impossible for humans (and actually probably easier for bots)

though it still remains to be proven in scaled implementation – we have found that the best way to beat bots is to introduce random checks. Meaning that sometimes the CAPTCHA appears, some times it does not. Sometimes a security check question ie….. what is 2+2 – sometimes it does not.
and these will appear in seemingly random places in the forms.

But of course these can be broken because the nature of bots is that they can detect patterns. Then of course what we have found works is to have a ‘wizard behind the glass’ meaning a semi-dedicated geek who spends part of his day manually adjusting and monitoring the registration and alogorhytheim.

This is of course not financially practical for small scale operations, but for the larger then it is an invaluable way to save reputation and bandwidth.

By: michael arrington

michael arrington — Sun, 06 Jul 2008 01:31:27 +0000

There are literally captcha’s that take me 3-4 tries to get. ridiculous. they’re human-proof.