[thelist] force a human intervention requirement for signups or access to resources

[Simon Wheatley]

David Dorward wrote:

> On 11 Feb 2004, at 10:53, John C Bullas (soton.ac.uk relay) wrote:
>
>> Looking for a way to prevent autosignups to your groups or to prevent 
>> exploitation of online
>>  resources by scripts designed to bulk submit?
>
>> Want to challenge visitors to read and type in a graphic of a word
>> to gain access to a resource....?
>
> If you do use an image, make sure there is an alternative way for 
> people who can't make use of it to sign up.
>
>
Recently WASP suggested that having a link to an automatically generated 
audio file, which spoke the word, might make the technique more accessible.

HTH

S