I've recently had literally thousands of spam messages posted as comments on my site. They have to have been generated by bots, no human could have posted so many messages.
The problem seems to be that the image validation code can be read by bots, is there any way to make it more challenging for them?
I've tried using email validation in the past, but that causes more problems than it solves. Many people who tried to register said they didn't receive the confirmation mail, and I suspect it's often ended up in people's spam bins without them noticing.
Seems that alot of us are having this problem. I have the Unauthenticated Users Infusion installed, if you don't, I suggest you do. While some might slip through, my staff and I check this all day, and just today I deleted, and banned two. I might not solve the entire problem, but I'm finding that if solves most of it.
Until this is solved, my site will run without the link to PHP-Fusion.
It seems that they search for the POWERED BY link.
When there's a proper solution to this, I will put the link back on :)...
I agree, I'm going to do the same thing. I had several different sites attacked simultaneously, on two completely different servers at completely different URLs. The only thing that connects them is PHP Fusion, and the only way they could find this out with a bot is to look for the copyright message.
Yup, loooks like crackers founded a some new bugs who allow to run a spam bots on php-f sites(thats are really big problem to default phpBB ), becouse even in few Lithuanian sites I saw today sth like:
All they had posted a spam in comments.
*On all these site were enabled the image code vertify system. :/
My option how to solve this problem is to change the files and db table variable(we did that, so we newer had sth like spam)
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