Re: CAPTCHA

On 25 January 2011 01:05, Steve Syfuhs <[email protected]> wrote:
> This is a brilliant idea.  Did you come up with it?  If not, got any resources?

I've been doing it for ages now and I find it works quite well. Google
for "Reverse captcha" for more info.

Robin


> Sent from my Windows Phone
>
> -----Original Message-----
> From: Robin Wood
> Sent: Monday, January 24, 2011 7:49 PM
> To: Shang Tsung
> Cc: [email protected]
> Subject: Re: CAPTCHA
>
>
> On 24 January 2011 15:11, Shang Tsung <[email protected]> wrote:
>> We are planning to use a CAPTCHA in order to stop spam engines from
>> filling our Online Forms. From a quick research I made, I found there
>> are good and there are bad types of CAPTCHA.
>>
>> Does anyone know if there are any standard and secure implementations
>> of CAPTCHA that we can use?
>>
>> Any good articles on the subject?
>
> I hate captchas, always have so I use a reverse captcha on sites that
> I build. You add a field to the form with name and id of email. You
> then give it a label that says "Please leave blank" and hide them both
> with CSS. Most people won't see them because the CSS works, even if
> they do see them they read the message and obey. Spam engines on the
> other hand spot the email field and happily fill it in. You then
> silently drop any contact forms with values in the email field.
>
> Normal humans aren't affected and you trick most generic bots.
>
> Robin
>
>
>
> This list is sponsored by Cenzic
> --------------------------------------
> Let Us Hack You. Before Hackers Do!
> It's Finally Here - The Cenzic Website HealthCheck. FREE.
> Request Yours Now!
> http://www.cenzic.com/2009HClaunch_Securityfocus
> --------------------------------------
>
>



This list is sponsored by Cenzic
--------------------------------------
Let Us Hack You. Before Hackers Do!
It's Finally Here - The Cenzic Website HealthCheck. FREE.
Request Yours Now! 
http://www.cenzic.com/2009HClaunch_Securityfocus
--------------------------------------