Hi  I'm Paul.

I work as a Software Engineer for a company called Critical Stack. At work I am part of a team that builds stuff to help people answer questions and solve problems related to information security.

I am an open source author (I write software and give it away for free) and staunch OSS supporter. I don't believe that people should have to pay to be safe while online or anywhere else for that matter.

You can find me on Twitter
@01110000
  • What goes on in my head. Unfiltered and very likely not well thought out


  • Concrete #2 I hate dusting. More generally, I hate when something is difficult to clean or maintain. This actually bothers me so much that I have no problem throwing perfectly good things ...
    Posted May 25, 2015, 4:11 PM by Paul Halliday
  • Focus on what you know We had an incredible training exercise a couple of weeks ago that really left me thinking (explained shortly). To prepare for the exercise, we began by removing all of the ...
    Posted Mar 27, 2015, 6:44 AM by Paul Halliday
  • Adding heatmaps to drilldowns I am playing with adding a simple weekly heatmap to the signature drilldowns in squert. It adds about a second to the original query so I will make it an ...
    Posted Feb 5, 2015, 6:49 AM by Paul Halliday
  • Autopilot I am just jotting this down because I have been thinking about it quite a bit.During training this weekend we spent the morning practicing water shuttles and then returned ...
    Posted Jan 12, 2015, 2:04 PM by Paul Halliday
  • Bro Agent for Sguil - Now supports Intel.log IntroI created the Bro agent for Sguil so that I could insert certain events from Bro (the notice log) into my workflow and access them via squert. This puts ...
    Posted Jan 14, 2015, 5:42 AM by Paul Halliday
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