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: Security Controls, Threat Management, Cybersecurity, Threat Detection, Cyber Threat Intelligence, Zero Trust Network Access, Cyber Attacks, Application Security, Cyber Risk, Computer Security, Information Systems Security, Data Security, Network Security, Encryption, Multi-Factor Authentication, Cryptography, Authorization (Computing), Identity and Access Management
Intermediate · Course · 1 - 4 Weeks

LearnQuest
Skills you'll gain: Virtual Private Networks (VPN), Linux Administration, Public Key Infrastructure, Linux, Linux Servers, Intrusion Detection and Prevention, Firewall, Remote Access Systems, Operating System Administration, Authentications, Authorization (Computing), Network Security, Security Controls, Infrastructure Security, Identity and Access Management, System Monitoring, File Management, Systems Administration, Cybersecurity, Information Technology
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Malware Protection, Exploitation techniques, Exploit development, Cyber Threat Hunting, Cyber Security Assessment, Application Security, Threat Detection, Virtual Machines, Code Review, Debugging, System Programming, Scripting, Windows PowerShell, Virtual Environment, Linux, File Management
Intermediate · Course · 1 - 3 Months
University of Minnesota
Skills you'll gain: Cybersecurity, Cloud Computing, Cloud Services, Information Technology, Technology Solutions, IT Infrastructure, Technical Management, Information Systems, Mobile Security, Emerging Technologies, Innovation, Business Transformation, Blockchain, Wireless Networks
Beginner · Course · 1 - 3 Months

Skills you'll gain: Retrieval-Augmented Generation, Model Context Protocol, Agentic Workflows, AI Orchestration, Generative AI Agents, Anthropic Claude, Prompt Engineering, Tool Calling, Generative AI, Automation, Scalability, Application Programming Interface (API), Servers, Python Programming
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Cybersecurity, Business Continuity, Threat Detection, Endpoint Security, Cyber Security Policies, Incident Response, Cyber Governance, Vulnerability Assessments, Network Security, Application Security, Cloud Security, Risk Management, Encryption, Authentications
Beginner · Course · 1 - 3 Months

Cisco Learning and Certifications
Skills you'll gain: Incident Response, Computer Security Incident Management, Security Information and Event Management (SIEM), Event Monitoring, Threat Detection, General Networking, Network Security, Cybersecurity, Infrastructure Security, Computer Networking, IT Security Architecture, Technical Support and Services, Malware Protection
Mixed · Course · 1 - 4 Weeks

University of Illinois Urbana-Champaign
Skills you'll gain: Internet Of Things, Networking Hardware, Network Infrastructure, Network Routers, General Networking, Network Switches, Network Protocols, Network Architecture, Cloud Infrastructure, Wireless Networks, Network Administration, Local Area Networks, Wide Area Networks, Infrastructure Security, Emerging Technologies, Telecommunications, Communication Systems, Distributed Computing, Python Programming, Machine Learning
Intermediate · Specialization · 3 - 6 Months

DeepLearning.AI
Skills you'll gain: Natural Language Processing, Markov Model, Embeddings, Text Mining, Data Preprocessing, Artificial Neural Networks, Machine Learning Methods, Algorithms, Statistical Modeling, Probability & Statistics
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Penetration Testing, Vulnerability Scanning, Cyber Security Assessment, Vulnerability Assessments, MITRE ATT&CK Framework, Threat Detection, Infrastructure Security, Payment Card Industry (PCI) Data Security Standards, NIST 800-53, Network Analysis, General Data Protection Regulation (GDPR)
Intermediate · Course · 1 - 4 Weeks
Duke University
Skills you'll gain: Bayesian Statistics, Statistical Hypothesis Testing, Sampling (Statistics), Statistical Inference, Exploratory Data Analysis, Peer Review, Regression Analysis, R (Software), Statistical Reporting, Probability Distribution, Statistical Analysis, Statistics, Data Analysis Software, Data Analysis, Probability & Statistics, Probability, R Programming, Statistical Modeling, Statistical Methods, Data Visualization
Beginner · Specialization · 3 - 6 Months

LearnKartS
Skills you'll gain: Docker (Software), Cloud-Native Computing, Containerization, Application Deployment, Data Storage, DevOps, Security Controls, Authentications, Network Model, YAML, Virtual Networking, Scalability
Intermediate · Course · 1 - 4 Weeks