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Zygote76 · 21-03-2008, 19:01

Hey guys,

I'm looking to secure a form on a site I am updating. I haven't had much dealings with forms being spammed before. Apparently their old form on the previous site was subject to a lot of spam.

I am wondering if you guys can suggest the best method to prevent this. I am vaguely aware of captchas but not really sure about success rate and installation methods.

I would appreciate it if anyone could offer suggestions or sites with comprehensive tutorials on form security.

Thanks,
Zygote

Shiro · 22-03-2008, 00:38

This should get you started
PHP mail() Email Injection Attack Allows Spammers to Send Email, President of the Internet

And after that you can start looking at these.
php prevent injection attacks - Google Search
Good luck!

Zygote76 · 24-03-2008, 02:34

Thanks Haku!

seen.to · 24-03-2008, 11:24

Take a look at reCaptcha, useful service with minimal setup. (I had to use it on a server that wouldn't support ImageGD so couldn't install my own).

Here's what I had to say about php injection in the past: clicky

roto · 24-03-2008, 13:11

Quote:

Originally Posted by seen.to

clicky

A fine blog tagline, sir.

pgo · 24-03-2008, 13:19

I just use a math question. Easier than a captcha.

Never been beaten by a bot yet.

roto · 24-03-2008, 13:22

Quote:

Originally Posted by pgo

I just use a math question. Easier than a captcha.

Never been beaten by a bot yet.

pgo, if someone can't solve your math problem (at least, the ones I've seen), you probably don't want them contacting you anyway.

21-03-2008, 19:01	#1 (permalink)
Zygote76 Senior Member Join Date: Oct 2007 Location: Ohio Posts: 403	Form Security Hey guys, I'm looking to secure a form on a site I am updating. I haven't had much dealings with forms being spammed before. Apparently their old form on the previous site was subject to a lot of spam. I am wondering if you guys can suggest the best method to prevent this. I am vaguely aware of captchas but not really sure about success rate and installation methods. I would appreciate it if anyone could offer suggestions or sites with comprehensive tutorials on form security. Thanks, Zygote

24-03-2008, 11:24	#4 (permalink)
seen.to unusual suspect ™ Join Date: Jul 2004 Location: DE, USA Posts: 4,682	Take a look at reCaptcha, useful service with minimal setup. (I had to use it on a server that wouldn't support ImageGD so couldn't install my own). Here's what I had to say about php injection in the past: clicky __________________ [[proverbs and quotes]] [[blog]] [[work]] [[photowebby - some photo's by me]]

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22-03-2008, 00:38	#2 (permalink)
Shiro Whitey Join Date: Aug 2007 Location: Yokohama, Japan Posts: 7,324	This should get you started PHP mail() Email Injection Attack Allows Spammers to Send Email, President of the Internet And after that you can start looking at these. php prevent injection attacks - Google Search Good luck!

24-03-2008, 02:34	#3 (permalink)
Zygote76 Senior Member Join Date: Oct 2007 Location: Ohio Posts: 403	Thanks Haku!

24-03-2008, 13:19	#6 (permalink)
pgo Senior Member Join Date: Jan 2005 Posts: 12,336	I just use a math question. Easier than a captcha. Never been beaten by a bot yet.

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