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Websense Security Labs discovers, investigates and reports on advanced Internet threats that traditional security
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(February 2008) Posts

We're on GigaOM

Posted: 19 Feb 2008 06:51 AM | Defensio, the blog | no comments

Alistair Croll just wrote a nice article about us on GigaOM . Feel free to stop by and let the world know why you love Defensio!


Adventures in Spam, part II: Is your Blog a Blackhole for Comments?

Posted: 17 Feb 2008 02:23 PM | Defensio, the blog | no comments

In the "traditional" world of blog spam filters, spam accumulates in your spambox, sometimes at an alarming rate. Occasionally legitimate comments, left by the users of your blog, will be eaten by your filter -- an expected and normal occurrence (if not somewhat annoying) as no filter can ever be perfect. When such "false positives" occur, one of 3 things will happen: 1) The commenter may send you a belligerent polite email notifying you that his/her comment failed to make it through to your blog; 2) If you're fastidious and eagle-eyed, you may notice the errant comment in your spambox and restore it before its absence can be noticed by too many readers; 3) You may fail to pick up on the comment as it becomes buried in spam, sucked into a black hole from which it will never emerge. If you've spent any time blogging, it's almost a given that #1 happens to you every other day. And as we all know, good blogging practice requires that you keep your garden clean and so you'll probably perform #2 on a regular basis, typically digging out a handful of erroneously caught comments whenever you check. But, the million dollar question: How often does #3 occur? With what frequency are legitimate tidbits of commentary/knowledge passed on by your readers but never made live to the web? How much conversation spirals down the dark recesses of the urinal drain? Sadly, it's impossible to say. Your spambox may be riddled with such false-positives, but it is probably so overflowing and poorly chronologically organized that seeking out each and every one of these errors is simply impractical if not done on a daily basis. If any of this resonates for you, we think you'll jump for joy for Defensio which puts an end to the blackhole problem by: Sorting your spambox by the "spaminess" of each comment, so that those least likely to be spam (i.e. most likely to be false positives) bubble up to the top for easy identification; Providing you with an RSS feed of spam (and legitimate) comments, so that you can easily and quickly identify mistakes without having to log into your blogging platform; Cranking up the dial on performance through individualized and continuous learning algorithms, so that less errors occur, period. Download Defensio now, and stop losing comments to spam.


Updates on our scaling issues

Posted: 16 Feb 2008 03:22 PM | Defensio, the blog | no comments

I recently wrote about some growing pain we were experiencing. Well... I have good news for you! We worked very hard last week to improve our architecture and everything should be back to normal and be as reliable as before. If you are experiencing problems, please inform us. Thank you!


We're growing (and it hurts!)

Posted: 12 Feb 2008 05:10 AM | Defensio, the blog | no comments

Hello everybody, Two news for you this morning... The good one is that we're growing. Fast! We process more and more comments every day, people recommend us, blog about us and just plain love us. It's awesome! Thank you for your support! It's very refreshing to know that we're doing good. The not-so-good news is that this huge increase in traffic made us to hit some bottlenecks in our setup. The current beta period is crucial to help us identify those problems. You might have seen a box similar to this one in your control panel. This message means that our servers were too busy to handle your request. For your convenience, we provide you with an easy way to resend the comments to Defensio. We understand that this is NOT an acceptable workaround. Please be assured that every effort is made to scale up our infrastructure as fast as possible. We're working with some experts on this matter and have already started making the necessary changes. We'll post updates about this on our community forum . Again, if you've seen the "blue box of death", we're truly sorry for all the inconveniences. We appreciate your support and patience while we resolve this matter. Again, thank you!

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