Dave_L

CAPTCHA

2 posts in this topic

Posted (edited)

I checked and saw that the forum registration page uses a CAPTCHA to prevent robots from registering.

Do you think that the spam posts here (which seem to be steadily increasing) are done by a robot that's able to defeat the CAPTCHA, or are human beings actually registering manually?

The CAPTCHA used by this site is that annoying RECAPTCHA project. Due to its widespread use, the spammers have probably prioritized cracking it. A simpler do-it-yourself CAPTCHA might be more effective.

Edited by Dave_L
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22 hours ago, Dave_L said:

spam posts here (which seem to be steadily increasing)

I can attest to that!  2-3 years ago when I started helping to clean out "the trash", and even just 6 months ago the level of spam was much lower. spam usually came in bunches; 5-10 all of one kind, Indian escorts for example or supplements, overnight maybe one day a month.  Now it seems to be 20 to 40 a day.

To me they do seem bot generated. All look to be the same format, often several copies of the same body.  Only on rare occasions does one "member" post two or more spam.  Haven't done a count, but density seems to go down the list of forums members can post in, How to use, Reporting Help, Blocklist Help, etc.  Sometimes they get down to the Lounge and Geek/Tech things.

At one time bots used live people to crack the CAPTCHA. The bot pass on the graphic, person pass back the answer, and the bot do the posting now that it was in. (talk about a soul killing job.) We seem to have three classes of spammers:

1) '... joined the community' and spammed within minutes, about as fast as the system would let it get through the steps. Could be a sw or live crack of the CAPTCHA.

2) a few that spam and they have been laying low for a while before the spam,

3) and finely there are obviously live posters that don't have a clue. 'I have a business I want to sell...' or 'I developed X' which may be relevant.  When I follow the link I have obviously taken the bat and am in a tar pit.

22 hours ago, Dave_L said:

A simpler do-it-yourself CAPTCHA might be more effective.

I do not have a level of access to change the security, but there is merit a non-googleable CAPTCHA.

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