Network security courses can help you learn about firewalls, intrusion detection systems, and encryption protocols. You can build skills in risk assessment, incident response, and vulnerability management. Many courses introduce tools like Wireshark for network analysis, Nessus for vulnerability scanning, and various security information and event management (SIEM) systems, showing how these skills are applied in practical work to protect networks from cyber threats.

Skills you'll gain: Bash (Scripting Language), Network Monitoring, Exploit development, System Configuration, Digital Forensics, Virtualization
Intermediate · Course · 1 - 3 Months

University of Colorado System
Skills you'll gain: Data Encryption Standard, Public Key Infrastructure, Cryptography, Public Key Cryptography Standards (PKCS), Brute-force attacks, Key Management, Advanced Encryption Standard (AES), Encryption, Data Integrity, Information Systems Security, Cybersecurity, Authentications, Information Assurance, Data Security, Theoretical Computer Science, Computational Logic, Algorithms
Intermediate · Specialization · 3 - 6 Months
Rutgers the State University of New Jersey
Skills you'll gain: Strategic Sourcing, Lean Six Sigma, Lean Manufacturing, Demand Planning, Procurement, Supplier Relationship Management, Forecasting, Lean Methodologies, Process Improvement, Supplier Management, Operations Management, Purchasing, Production Process, Supply Management, Supply Chain, Warehouse Management, Supply Chain Planning, Inventory and Warehousing, Inventory Management System, Logistics
Beginner · Specialization · 3 - 6 Months

Cisco Learning and Certifications
Skills you'll gain: File Systems, Endpoint Security, Linux, Operating System Administration, Microsoft Windows, Windows PowerShell, Linux Administration, Windows Servers, Operating Systems, Linux Commands, Network Administration, Active Directory, System Monitoring, System Configuration, Network Security, Security Controls, Command-Line Interface, Malware Protection, Service Management
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Google Cloud Platform, Cloud Infrastructure, Terraform, Load Balancing, Infrastructure as Code (IaC), Cloud Computing, Managed Services, Solution Architecture, Virtual Machines, Network Infrastructure, Virtual Private Networks (VPN), Scalability
Intermediate · Course · 1 - 3 Months

Cisco Learning and Certifications
Skills you'll gain: Incident Response, Computer Security Incident Management, Event Monitoring, Threat Detection, General Networking, Network Security, Network Administration, Cybersecurity, Infrastructure Security, Technical Support and Services, Data Management
Mixed · Course · 1 - 4 Weeks

Johns Hopkins University
Skills you'll gain: Intrusion Detection and Prevention, Model Evaluation, Incident Response, Threat Detection, Endpoint Detection and Response, Computer Security Incident Management, Cyber Threat Hunting, Distributed Denial-Of-Service (DDoS) Attacks, Cybersecurity, Anomaly Detection, Cyber Security Strategy, Threat Management, Continuous Monitoring, Cyber Security Policies, Security Management, System Monitoring, AI Security, Virtual Machines, Network Analysis, Data Analysis
Intermediate · Specialization · 3 - 6 Months
University of London
Skills you'll gain: Computer Science, Computer Systems, Web Applications, Computer Literacy, Network Security, Computer Networking, Computational Thinking, Debugging, Web Design and Development, Cybersecurity, Problem Management, Software Architecture, Data Storage
Beginner · Course · 1 - 4 Weeks

Stanford University
Skills you'll gain: Data Structures, Graph Theory, Algorithms, Network Model, Programming Principles, Social Network Analysis, Network Analysis, Theoretical Computer Science, Network Routing, Computational Logic
Intermediate · Course · 1 - 4 Weeks

Johns Hopkins University
Skills you'll gain: Large Language Modeling, Email Security, Exploitation techniques, AI Security, Border Gateway Protocol, Malware Protection, Mobile Security, Cybersecurity, Network Security, Open Web Application Security Project (OWASP), TCP/IP, Threat Detection, Network Analysis, Internet Of Things, Network Protocols, Network Monitoring, Responsible AI, Network Routing, Infrastructure Security, Application Security
Intermediate · Specialization · 3 - 6 Months

Fortinet, Inc.
Skills you'll gain: Firewall, Network Security, Virtual Private Networks (VPN), Network Administration, Intrusion Detection and Prevention, Enterprise Security, Network Architecture, Security Controls, Performance Tuning, Cybersecurity, Malware Protection, Configuration Management
Intermediate · Course · 1 - 3 Months
Johns Hopkins University
Skills you'll gain: Rmarkdown, Exploratory Data Analysis, Version Control, Statistical Analysis, R Programming, Data Manipulation, Data Cleansing, Data Science, Plot (Graphics), Statistical Programming, Statistical Visualization, Ggplot2, R (Software), Dimensionality Reduction, Data Visualization Software, Data Integration, Knitr, Data Sharing, GitHub, Machine Learning
Beginner · Specialization · 3 - 6 Months