How Not To Design A CAPTCHA

Dj_Jestar · 13 Jul 2011 at 18:08

I got a recaptcha with music notes in it the other day.

The point with those types is to listen to them, not read them.

Midget^ · 13 Jul 2011 at 18:21

The recaptcha is genius, the second word is normally from a scanned text of an OCR that didn't pick up the actual word, so they use whatever you input and based on what other people input to verify the word. This also means that normally with the second word you can put in anything you like.

http://www.google.com/recaptcha/learnmore

Why can't I come up with an idea like that.

PhillyDee · 13 Jul 2011 at 18:27

I was reading in New Scientist about this very thing the other week. It was more to do with the advent of crowd sourcing, and using this to send the decode request to a human who would do it for pennies, if not less. This makes all forms of human captcha redundant and pointless.

joeyjojo · 13 Jul 2011 at 18:37

Midget^ said:
The recaptcha is genius, the second word is normally from a scanned text of an OCR that didn't pick up the actual word, so they use whatever you input and based on what other people input to verify the word. This also means that normally with the second word you can put in anything you like.

http://www.google.com/recaptcha/learnmore

Why can't I come up with an idea like that.

Google picked up recaptcha?? Christ is there any technology they don't want?

Midget^ · 13 Jul 2011 at 18:41

joeyjojo said:
Google picked up recaptcha?? Christ is there any technology they don't want?

Yep, think it was to do with their Google Books venture which is a pretty great way to put us idiots mashing our keyboards and grumbling about stupid CAPTCHAs to use

Dj_Jestar · 13 Jul 2011 at 18:44

PhillyDee said:
I was reading in New Scientist about this very thing the other week. It was more to do with the advent of crowd sourcing, and using this to send the decode request to a human who would do it for pennies, if not less. This makes all forms of human captcha redundant and pointless.

That's known as "the turk" named after the err.. Turk.

GravyMonster · 13 Jul 2011 at 19:06

This is the worst one I've ever had. It was that bad I print screened it and uploaded it to PB, just for threads like this

dasyad · 13 Jul 2011 at 19:12

Is that a gmail one by any chance? The unreadable style looks familiar

Midget^ · 13 Jul 2011 at 19:20

That one is easy, it obviously says fagulacnic? faGUlaQnIC? I give up...

jak731 · 13 Jul 2011 at 23:52

It clearly says facuracnic (good old image zoom

)

Midget^ · 14 Jul 2011 at 09:20

Ok fancy pants what's the square root of 3,254,658,012 huh? And don't you use a calculator because I'll KNOW!

joeyjojo · 14 Jul 2011 at 10:35

I hate it when they ask you to do integrals:

Uploaded with ImageShack.us

Dj_Jestar · 14 Jul 2011 at 10:38

that would pass if you used S.

Midget^ · 14 Jul 2011 at 10:40

Dj_Jestar said:
that would pass if you used S.

It would probably pass regardless of what you put considering that recaptcha only verifies one of the words, I imagine Sonages is the word that would verify.

Dj_Jestar · 14 Jul 2011 at 10:46

I know, but I mean these captchas are more flexible than you think. For example, in the words they actually use to verify, they will often allow "l" instead of "I" and other similar chars.

Midget^ · 14 Jul 2011 at 10:49

Dj_Jestar said:
I know, but I mean these captchas are more flexible than you think. For example, in the words they actually use to verify, they will often allow "l" instead of "I" and other similar chars.

Yeah I think you're right, I never fail a recaptcha and I can't type for **** there's no way I got it right every time.

Kevin Clark · 14 Jul 2011 at 12:38

I just use non searchable Q&A questions. They work a treat. No need for wobbly letters.

I hope Google fixes recaptcha cos the bots cracked it about 6 months ago.

PistolPete · 14 Jul 2011 at 13:00

daz said:
My friend is still working on his Motion CAPTCHA plugin...
http://www.josscrowcroft.com/demos/motioncaptcha/

Took me about 30 seconds of thinking.... that sucks I don't have a touchscreen to draw that....until I remembered I do still have a mouse.