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Captcha

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newmanfamilyvlogs:

--- Quote from: RayB on August 28, 2011, 10:17:38 pm ---Obviously OCR has gotten good enough at text recognition that they need to distort and add the crud in. You think they don't TEST this stuff out?

One guy has a brilliant idea to replace captchas: Have a slider that you have to click and slide from left to right. Could a bot do that? I'm not sure.


--- End quote ---

Why couldn't it? In the end most bots are going to be directly submitting their POST/GET data directly anyway, there's no clicking or dragging involved. I doubt any of the spam bots that rely on cracking captchas even render the html anywhere.

shmokes:

--- Quote from: Nephasth on August 28, 2011, 04:20:43 pm ---
--- Quote from: pinballjim on August 24, 2011, 12:49:43 am ---You only have to get the more legible word correct.  You can put gibberish for the other.  If you don't believe that, try it for yourself.

--- End quote ---

Tried it. Doesn't work.

--- End quote ---

Me too. Definitely doesn't work.

shmokes:
There's almost always a clear word and a distorted one.  But I just got one wrong in which the clear word was crystal clear and I actually made a legitimate attempt to get the distorted one right.  I wasn't even trying to test your advice.  Definitely doesn't work.  Now that I think of it, it makes sense that it can't work that way.  If it did, people wouldn't be so frustrated with the system.

Howard_Casto:

--- Quote from: RayB on August 28, 2011, 10:17:38 pm ---Obviously OCR has gotten good enough at text recognition that they need to distort and add the crud in. You think they don't TEST this stuff out?

--- End quote ---


I'm sure they do, with state of the art techniques that 90% of the hackers out there aren't going to have access to nor know how to use.  Captcha is 

The thing about security is it is an illusion.  It doesn't make your site/home/whatever anymore secure to people that actually want to get into it, only to those that just do it for fun.  What it does it make YOU rest easy at night by making you think you are secure.  So it's ok to have a little bit of security to make yourself feel more at east, but at some point you've got to wonder if you are locking yourself in rather than keeping others out. 

To me  using captcha on the average website is like putting steel bars on the windows and razor wire on the fence of your home.

ChadTower:

--- Quote from: RayB on August 28, 2011, 10:17:38 pm --- Could a bot do that? I'm not sure.

--- End quote ---


Absolutely.  Any test automation suite could do it.  Different type of bot but test suites run through gui interfaces for regression and load testing without any issues.  If it can be done with a mouse it can be done with a 'bot'.

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