Terry Zink's Cyber Security Blog

Discussing Internet security in (mostly) plain English

November, 2007

  • Terry Zink's Cyber Security Blog

    Accurate metrics

    • 8 Comments
    This past week, I started coming up with some new metrics on how to measure our effectiveness, specifically, our spam effectiveness. The way Hotmail does it is use a metric called Spam-in-the-inbox, or SITI for short.  It is a measure of the proportion...
  • Terry Zink's Cyber Security Blog

    Why change the FP metrics?

    • 6 Comments
    In the comments in my other post on the other side of accurate metrics, a fellow blogger writes the following: In my experience every vendor who quotes a FP figure bases it on the total number of inbound messages (including those that get 5xx-rejected...
  • Terry Zink's Cyber Security Blog

    Review Part 2: Spam Kings

    • 6 Comments
    I'd like to continue on in my review of the book Spam Kings and make some more comments, particularly regarding the antispammers. One thing that I really liked about the book is learning the history of some of the spam tools.  I was never a participant...
  • Terry Zink's Cyber Security Blog

    Security risks at a big box retailer

    • 6 Comments
    Even though things like phishing and spoofing and hacking are what we normally think of when we consider electronic security risks, sometimes the simple things are what cause the biggest problems. I was recently in a big box retailer picking up some stuff...
  • Terry Zink's Cyber Security Blog

    The other half of accurate metrics

    • 5 Comments
    Referring back to my previous post on accurate metrics referring to spam-in-the-inbox, spam is one side while false positives are the other. Whereas we measure spam as a proportion of what the user sees, we can measure false positives as a proportion...
  • Terry Zink's Cyber Security Blog

    Missed my shot again!

    • 3 Comments
    In my other post, I mentioned that I missed my chance to see a famous American politician visit the Microsoft campus. Well, it turns out that it happened again! This morning, I came to work and was meeting some people in the hallway around 10 am and...
  • Terry Zink's Cyber Security Blog

    Watch your mistakes, limit their effects

    • 3 Comments
    As a stock trader, my trading style has evolved over time.  However, the one thing that I have always been good at is limiting my mistakes.  Book after book I read tells me that I should always cut my losses short and never let a small loss...
  • Terry Zink's Cyber Security Blog

    Review: Spam Kings

    • 3 Comments
    A few months ago, I purchased the book Spam Kings , but only recently managed to get around to reading and finishing it.  In case you've never read it, it chronicles the stories of some spammers and the anti-spammers who fought them.  These...
  • Terry Zink's Cyber Security Blog

    A couple of types of spam analysts

    • 2 Comments
    Back in the early to late 1990's, when Winnipeg still had an NHL hockey team, I used to watch and listen to a lot of hockey.  I was a really avid sports fan.  After they left town and I started university I didn't follow the game as closely...
  • Terry Zink's Cyber Security Blog

    Futurama is great

    • 2 Comments
    I had to comment about this post from the Spam Wars blog.  It's called the Futurama of Spam.  The blogger is a lot like me - he enjoys Futurama and he blogs about spam stuff.  The post ties together an episode of Futurama and how it relates...
  • Terry Zink's Cyber Security Blog

    The disadvantages of being a Program Manager

    • 1 Comments
    As a Program Manager in spam filtering in Exchange Hosted Services, there are plusses and minuses.  The advantages are described here .  But it's not all fun and games.  There are some drawbacks. Program managing means following up on the...
  • Terry Zink's Cyber Security Blog

    Zune making up some ground in advertising

    • 1 Comments
    I'm currently watching a TV show when I saw an advertisement for a digital music player.  At first I thought it was an iPod commercial, and I was thinking "Hey, this is kind of a neat commercial... in terms of creativity in advertising." ...
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