OT: On-Rev antispam (& reCAPTCHA)

[Björnke von Gierke]

They make a lot of money. Normally there's some url hidden in the crap, and if people go there they make 2 cents from google adverts. If they spam 2 million per day, and the turnaround is 0.1 percent, then they get a good income. Sometimes they also harvest email replies, and working email addresses can also be sold to other spammers and scammers for about 5-10 cent per piece.



On 7 Mar 2011, at 12:05, Tiemo Hollmann TB wrote:

> Hi,
> what I would like to know is what intention do have bots (the humans behind
> the bots) to make useless entries into  blogs or - in my case - in signing
> on to get a newsletter with non existent nonsense email addresses. The only
> sense in that behavior I can think of is that there must be any kind of
> forms where robots _do_ have any advantage from and all the other entries
> (like in my newsletter) are just "collateral damages"
> But up to now I couldn't imagine any sense behind that and couldn't find
> anyone who could tell me. But I am sure you can!
> Tiemo
> 
>> -----Ursprüngliche Nachricht-----
>> Von: use-livecode-bounces at lists.runrev.com [mailto:use-livecode-
>> bounces at lists.runrev.com] Im Auftrag von Keith Clarke
>> Gesendet: Sonntag, 6. März 2011 21:39
>> An: How to use LiveCode
>> Betreff: Re: On-Rev antispam (& reCAPTCHA)
>> 
>> ...I concur, what great ideas:
>> a) language-independent, random simple maths questions that humans need to
>> understand;
>> b) deliberate hidden password field to capture bots;
>> c) obscure names for login fields to confuse bots;
>> d) simple validation repeat fields.
>> 
>> I've learned so much about programming and logic from the creative bunch
> of
>> people on this list!
>> Best,
>> Keith..
>> 
>> On 6 Mar 2011, at 13:54, Medard wrote:
>> 
>>> Medard <liste.revo at medard.on-rev.com> wrote:
>>> 
>>>> What are your thoughts about that?
>>> 
>>> Thank you for all your responses!
>>> 
>>> Me too, i dislike Captchas, and I am glad of your suggestions!
>>> 
>>> Medard
>>> 
>>> --
>>> lectures.medard.on-rev.com
>>> 
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