Explainers

“So what’s the difference between a container and a virtual machine?” I get this question a lot. And the answer usually involves terms like “hypervisor,” “kernel sharing,” and “hardware abstraction” — which just creates more questions. But there’s actually a deeper question lurking here: what’s the difference between simulation, emulation, virtualization, and containerization? These four concepts are often confused, but they’re fundamentally different approaches to solving the same problem: running something in an environment it wasn’t originally designed for. ...

“So what exactly is this zero trust thing everyone keeps talking about?” I get this question a lot. Usually from managers, executives, or anyone who has to approve security budgets without a technical background. And honestly, most explanations I’ve seen are terrible. They’re either drowning in jargon or so oversimplified they’re useless. So here’s my attempt at a metaphor that actually works. One that I’ve used successfully to explain zero trust to my parents, to executives, and to that one colleague who still thinks the firewall is “the internet box.” ...