TBI-603 Network Security & Cyber Law Unit Notes

TBI-six zero three Network Security and Cyber Law

Unit Notes - Written for Listening

Unit One

Introduction to Network Security

Network security is the practice of protecting computers, networks, and data from unauthorized access, damage, or disruption. At its core, every security decision revolves around three fundamental goals - protecting the confidentiality of information, preserving its integrity, and guaranteeing its availability. Together, these three form what security professionals call the CIA triad. A security attack is any action that threatens one or more of these goals.