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I help run a fairly large email newsletter. Recently we have discovered that our click through rates have been artificially raised by some kind of bot activity. They are clicking on links in our emails a couple hundred times. I've looked up the email addresses that they use to sign up and they are using the same email addresses to join a couple of other sites. How could they benefit from clicking on links in our email, or is it just a side effect of some other activity they are doing?

The newsletter contains celebrity and shopping information if that helps.

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2 Answers

up vote 3 down vote accepted

Spammers will do anything to see if they can exploit the system to make money. They could be exploring your site looking for weaknesses. They could be looking to sell their accounts if they discover they have lots of value. They may be following those links blindly because the bot doesn't know any better.

Since they can automate the whole process spammers and other sinister parties aren't concerned whether their actions make a whole lot of sense. It costs very little for their bots to run and as long as the net result of their work is profitable they're not going to optimize their bots actions to avoid sites like yours.

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In other words: don't try to make sense of what spam bots are doing? –  nathangiesbrecht Feb 26 at 20:32
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Well, try. If you can discern intent you can better mitigate their efforts and possibly even discover a potential flaw that they are trying to exploit. But if there doesn't seem to be anything more to what you see them doing it's probably just an automated bot "going" until someone says stop. It's kinda of annoying, and sad, but it's how it is. –  John Conde Feb 26 at 20:36
    
Interesting, for now we are going to set up a honeypot where they are signing up. –  Vigrant Feb 26 at 20:42
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Often when you create an account on a site you get sent an email in which you must follow a link in order to complete the sign up process. The bot could simply be emulating this process, without knowing anything about the context of the email.

Just a thought... if you had a subtle "DO NOT CLICK HERE" link in the email, would that catch the bots out?!

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They are clicking links from an actual newsletter email , not the confirmation process. Your DO NOT CLICK HERE idea is kinda similar to the honeypot we are going to set up. Thanks for your input! –  Vigrant Feb 26 at 21:31
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"They are clicking links from an actual newsletter email" - yes, but the bots don't know that - they are (perhaps) simply programmed to click on links in order to complete the registration process. –  w3d Feb 26 at 21:33
    
They are clicking on most of the links in the newsletters, and in different frequencies. You could be right though. It turns out that we are probably gonna try out your idea along side a honeypot on signup. 1px font in the footer that's a link! –  Vigrant Feb 26 at 21:41
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Update: Your idea worked! We are catching em very easily. –  Vigrant Feb 27 at 18:44
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