Modern Cybersecurity Fundamentals

Trace the evolution of cybersecurity from early ARPANET research and mainframes to modern ransomware and high-profile breaches, highlighting Trojan horses, antivirus, firewalls, and cloud threats.

Identify assets, threats, and vulnerabilities; assess risk, prioritize risks, and implement governance, automation, and incident response to mitigate cyber threats.

Explore intrusion detection systems (IDS) and their network-based, host-based, and behavior-based variants, including signature and anomaly approaches, and how they complement firewalls.

Explore how networks connect devices to communicate through addressing, ip addresses, and protocols, and examine local area networks, wide area networks, routers, switches, and nodes.

Understand how the internet connects millions of devices through interconnected networks using tcp/ip and ip addresses, with data packets traveling via hubs, switches, and cables to load web pages.

Explore the seven OSI layers—physical, data link, network, transport, session, presentation, and application—that enable devices to communicate over a network.

Explore network topology, from physical layouts like bus, star, ring, and mesh, to logical schemes such as circuit, message, and packet switching. Understand how large transmissions are broken into packets.

Explore how the domain name system translates names into IP addresses and DNS records, enabling web access and security against malware and phishing.

Learn how dynamic host configuration protocol assigns IP addresses and network settings to devices on a LAN using a client-server model, enabling automatic gateway configuration and centralized management.