Meltdown and Spectre

With the recent disclosure of the hardware bugs Meltdown and Spectre, the infosec world has been thrown into a bit of chaos. The bottom line is “It’s a very serious bug in the CPU itself; your computer is most probably affected, but the major operating...

How Basic Data Structures are Leaky Abstractions

This blog post is based on a set of challenges presented at SecTalks Canberra. You can have a go at solving the challenges here – this post will have some spoilers.  Here’s a trick question: if I have a negative number, and I multiply it by negative one,...