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.

Johns Hopkins University
Skills you'll gain: Network Analysis, Statistical Modeling, Bayesian Network, Applied Machine Learning, R (Software), R Programming, Social Network Analysis, Statistical Methods, Simulations, Network Model, Statistical Analysis, Probability & Statistics, Statistical Programming, Probability Distribution, Sampling (Statistics), Data Visualization, Machine Learning, Statistical Hypothesis Testing
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Application Lifecycle Management, Azure DevOps Pipelines, Azure DevOps, CI/CD, DevSecOps, Continuous Delivery, Continuous Integration, DevOps, Data Validation, Data Governance, Data Quality, Test Automation, Apache Airflow, Extract, Transform, Load, Data Pipelines, SQL
Advanced · Course · 1 - 4 Weeks

Skills you'll gain: API Testing, Test Automation, Test Case, Test Tools, Test Execution Engine, Application Programming Interface (API), System Monitoring, Restful API, Scenario Testing, Jenkins, CI/CD, Test Data, Azure DevOps Pipelines, Azure DevOps, Query Languages, Data Validation, Scalability, Distributed Computing
Advanced · Course · 1 - 4 Weeks

Packt
Skills you'll gain: Package and Software Management, Linux Administration, Shell Script, Ubuntu, User Accounts, Linux, Devops Tools, Linux Servers, grep, Linux Commands, Red Hat Enterprise Linux, Bash (Scripting Language), Kubernetes, Command-Line Interface, Network Troubleshooting, Containerization, Ansible, File Systems, Application Deployment, Authentications
Intermediate · Specialization · 1 - 3 Months

LearnKartS
Skills you'll gain: Risk Analysis, Enterprise Risk Management (ERM), Incident Management, Incident Response, Security Controls, Cyber Risk, Risk Mitigation, Threat Management, Asset Management, Business Continuity, Security Strategy, Governance, IT Management, Risk Control, Disaster Recovery, Information Management, Security Awareness, Vendor Management, Program Evaluation, Continuous Improvement Process
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Database Design, Database Development, Query Languages, SQL, Database Architecture and Administration, Data Modeling, Database Management
Advanced · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Root Cause Analysis, Problem Management, Solution Delivery, Issue Tracking, Plan Execution, Corrective and Preventive Action (CAPA), Sprint Planning, Milestones (Project Management), Discussion Facilitation, Project Management Software, Performance Measurement, Accountability
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Prompt Engineering, Generative AI, Generative Model Architectures, Generative Adversarial Networks (GANs), LLM Application, Fine-tuning, Large Language Modeling, Model Optimization, Artificial Intelligence and Machine Learning (AI/ML), Responsible AI, Embeddings, Data Preprocessing, AI Personalization, Deep Learning, Open Source Technology, Data Processing, Machine Learning, Data Cleansing, Data Visualization, Database Systems
Beginner · Course · 1 - 3 Months

Skills you'll gain: Test Planning, Software Quality Assurance, Software Testing, Quality Assurance, Process Improvement, Quality Assessment, Continuous Improvement Process, Technology Roadmaps, Quality Improvement, Gap Analysis
Beginner · Course · 1 - 4 Weeks

Ball State University
Skills you'll gain: Rmarkdown, Exploratory Data Analysis, Data Visualization Software, Ggplot2, Interactive Data Visualization, Plot (Graphics), Statistical Visualization, R (Software), R Programming, Data Storytelling, Histogram, Scatter Plots, Graphing, Data Analysis, Analysis, Color Theory
Build toward a degree
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Distributed Denial-Of-Service (DDoS) Attacks, Encryption, Cybersecurity, Threat Detection, Exploitation techniques, Data Encryption Standard, Threat Modeling, Security Awareness, Cryptography, Cyber Attacks, Data Security, Databases, Malware Protection, Penetration Testing, AI Security, Vulnerability Assessments, Application Security, Security Engineering, Artificial Intelligence, SQL
Beginner · Specialization · 1 - 3 Months

Skills you'll gain: Open Web Application Security Project (OWASP), Authentications, Web Applications, Penetration Testing, Application Security, Security Controls, Security Testing, Vulnerability Assessments, Application Programming Interface (API), Exploitation techniques, Web Servers, Cloud Security
Intermediate · Course · 1 - 4 Weeks