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.

University of Colorado Boulder
Skills you'll gain: Bayesian Network, Bayesian Statistics, Markov Model, Probability, Decision Intelligence, Reinforcement Learning, Machine Learning Methods, Artificial Intelligence, Statistical Inference, Statistical Modeling, Network Model, Forecasting, Probability & Statistics, Dependency Analysis, Statistical Methods, Agentic systems, Applied Machine Learning, Probability Distribution, Time Series Analysis and Forecasting, Sampling (Statistics)
Intermediate · Course · 1 - 4 Weeks

ISC2
Skills you'll gain: Cloud Computing Architecture, Cloud Computing, Cloud Standards, Cloud Infrastructure, Cloud Services, Resource Allocation, Cloud Security, Infrastructure As A Service (IaaS), Virtualization and Virtual Machines, Cloud Deployment, Virtualization, Hybrid Cloud Computing, Containerization, Software As A Service, Platform As A Service (PaaS), Brokerage, Scalability
Intermediate · Course · 1 - 3 Months

Coursera
Skills you'll gain: Email Marketing, Campaign Management, Data-Driven Marketing, Marketing Analytics, Microsoft Excel, Driving engagement, Trend Analysis, Data-Driven Decision-Making, Customer Engagement
Beginner · Course · 1 - 4 Weeks

LearnKartS
Skills you'll gain: Prompt Engineering, Blogs, Content Scheduling, Google Gemini, Email Automation, Email Marketing, Social Media Marketing, Google Ads, Content Optimization, Search Engine Optimization, Digital Marketing, ChatGPT, Digital Advertising, Content Marketing, Content Creation, Copywriting, Keyword Research, Lead Generation, Artificial Intelligence, Brand Strategy
Beginner · Specialization · 1 - 3 Months

Skills you'll gain: Secure Coding, Frontend Performance
Intermediate · Course · 1 - 3 Months

Sungkyunkwan University
Skills you'll gain: Regression Analysis, Predictive Modeling, Investment Management, Risk Analysis, Investments, Machine Learning Methods, R Programming, Statistical Methods, Machine Learning, Statistical Programming, Statistical Analysis, Financial Analysis, Machine Learning Algorithms, R (Software), Risk Management, Logistic Regression
★ 4.8 (6) · Intermediate · Course · 1 - 4 Weeks

Goodwill Industries International
Skills you'll gain: digital literacy, Computer Literacy, Digital Communications, Computer Security Awareness Training, Community Development, Community Outreach, End User Training and Support, Advocacy, Telecommunications
★ 4.6 (31) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Excel Formulas, Spreadsheet Software, Microsoft Excel, Financial Modeling, Auditing, Procedure Development, Debugging, Project Documentation, Data Integrity, Data Security
★ 1.7 (7) · Advanced · Course · 1 - 4 Weeks

Logical Operations
Skills you'll gain: R Programming, R (Software), Data Science, Data Analysis, Statistical Modeling, Data Visualization, Statistical Analysis, Statistical Visualization, Regression Analysis, Statistical Machine Learning, Plot (Graphics), Data Structures, Computer Programming, Decision Tree Learning, Machine Learning Methods, Machine Learning, Software Development, Computer Programming Tools, Data Import/Export, Machine Learning Algorithms
Intermediate · Specialization · 1 - 3 Months

LearnKartS
Skills you'll gain: Apache Kafka, Prometheus (Software), Data Governance, Distributed Computing, Data Processing, Data Store, Event Monitoring, Network Monitoring, Systems Architecture, Performance Metric, Network Troubleshooting, Network Architecture
★ 4.5 (6) · Intermediate · Course · 1 - 3 Months

University of California, Santa Barbara
Skills you'll gain: Employee Retirement Income Security Act, Family and Medical Leave Act of 1993, Compensation Analysis, Benefits Administration, Workers Compensation, Human Resources, Human Resource Policies, Benefits Enrollment Processes, Labor Compliance, Compensation Management, Human Resource Management, Legal Risk, Labor Law, Civil Law, Law, Regulation, and Compliance, Human Resources Management and Planning, Compliance Management, Disabilities, HR Tech, Record Keeping
Beginner · Specialization · 1 - 3 Months

Skills you'll gain: Network Troubleshooting, Linux Administration, Linux Servers, Linux, Linux Commands, Dynamic Host Configuration Protocol (DHCP), General Networking, Network Protocols, TCP/IP, Network Administration, Ubuntu, Red Hat Enterprise Linux, Servers, System Configuration, Control Panels, Network Analysis, Command-Line Interface, YAML
Intermediate · Course · 1 - 4 Weeks