Blogs about Security

CodeIgniter Math CAPTCHA library, with multi-language plain text questions

Published on the 9th September, 2012

I've just released a new Math CAPTCHA Library for CodeIgniter, which can use plain text English words for numbers and random question phrases. It's also supports multiple languages (as it uses the core language library) and both addition and multiplication. It's still in the early stages so it needs to be put through its paces, but hopefully the CodeIgniter community will find this a nice alternative to the regular image CAPTCHA or simple math CAPTCHA. The library comes with 5 English languag...

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Fighting blog comment spam

Published on the 14th February, 2011

I've noticed a recent influx of blog spam which seem, to some degree, relevant to the content it's posted on. I think spammers are composing comments targeted to specific subject areas and then searching the web for content on that subject so that when they post the comment it appears at first glance to be genuine. Of course the most telling part is the totally unrelated link to men's watches or postal degrees which seem somewhat out of place in a comment on a php web development framework. Neve...

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Trying out Mollom for Drupal

Published on the 3rd April, 2010

I've decided to give the web service, Mollom, a try since my CAPTCHA, which I kept tweaking to the point where I nearly couldn't read it, was letting me down. The problem with CAPTCHA is it logs how many form submissions it blocks, which is great, but this doesn't necessarily mean SPAM submissions; it could be frustrated people not being able to post a comment on your blog. Mollom works by analysing the form submission for SPAM patterns, then determining whether it is suitable or not. It's quite...

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How to get WPA2 working on Windows XP

Published on the 27th October, 2007

WPA2 is the latest standard in Wi-Fi security, and it's considered fully secure (for today at least). It's a good idea to run the highest level of security you can, even on a home network. I won't go into the benefits, but as far as I can see there are no reasons not to move to WPA2 - you won't even notice any difference, but your connection will be more secure. WPA2 isn't a standard option in Windows XP (SP2), so you'll have to download the hotfix from Microsoft: The Wi-Fi Protected Access 2 ...

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