Start here · Essential guide
What makes a password hard to guess, why reusing one is risky, and how two-step sign-in protects an account, explained in plain language with practical habits.
A plain overview of common online threats such as phishing, malware and data breaches, and the everyday defenses that help ordinary users reduce their risk.
How everyday objects connect to networks, the main ways connected devices communicate, and why many of them carry security weaknesses worth understanding.
How people interact with computers through keyboards, touch, voice, gestures and early brain-computer interfaces, and what makes an interface easy to use.
A dated walk through the web from Tim Berners-Lee's 1989 proposal to today's apps and cloud services, and how the web differs from the wider internet.