Hi, Caroline.

I've had problems on our own site with getting a great deal of spam
through our enquiry form, even though I took many precautions before
finally settling on a captcha. Since I implemented the captcha, almost
all spam has stopped (certainly robot-generated spam has).

Given the amount of effort that some hackers appear to be willing to put
in to 'cracking' an enquiry form (I don't begin to understand their
motivation since the messages are seen by one or two people at the
most), I doubt that a 'honeypot' approach will work for long.

I like (and use) reCAPTCHA - http://recaptcha.net/ 

It isn't too challenging to use or to implement. It includes an aural
interface for users who cannot see the screen.

Regards,

William Hudson
Syntagm Ltd
Design for Usability
UK 01235-522859
World +44-1235-522859
US Toll Free 1-866-SYNTAGM
mailto:[email protected]
http://www.syntagm.co.uk
skype:williamhudsonskype 

Syntagm is a limited company registered in England and Wales (1985).
Registered number: 1895345. Registered office: 10 Oxford Road, Abingdon
OX14 2DS.

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http://www.syntagm.co.uk/design/datesstudy.htm

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> -----Original Message-----
> From: [email protected] [mailto:[email protected]] On Behalf Of
> Caroline Jarrett
> Sent: 18 July 2009 05:06
> To: [email protected]
> Subject: [IxDA Discuss] Captchas - what do you currently do?
> 
> Hi all
> 
> I've been brooding on captchas recently...
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