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 Illinois Urbana-Champaign
Skills you'll gain: Biotechnology, Food and Beverage, Sustainable Technologies, Biological Engineering, Scalability, Sustainable Systems, Process Engineering, Product Development, Production Process, Market Opportunities, Innovation, Market Trend, Market Analysis, Microbiology, Workforce Development, Capacity Planning
Beginner · Course · 1 - 4 Weeks

Infosec
Skills you'll gain: Apple iOS, iOS Development, Open Web Application Security Project (OWASP), Swift Programming, Role-Based Access Control (RBAC), Vulnerability Assessments, Mobile Security, Software Testing, Mobile Development, Development Testing, Secure Coding, Authentications, Unit Testing, Application Security, Encryption, Knowledge of Apple Hardware, Security Testing, IT Security Architecture, Network Security, Mobile Development Tools
Intermediate · Specialization · 1 - 3 Months

Skills you'll gain: Tensorflow, Google Cloud Platform, Scripting, Data-Driven Decision-Making, Model Training, Applied Machine Learning, Machine Learning Methods, Artificial Neural Networks, Machine Learning, Artificial Intelligence and Machine Learning (AI/ML), Cloud Computing, Development Environment
★ 4 (20) · Beginner · Project · Less Than 2 Hours

Coursera
Skills you'll gain: Social Media Marketing, Social Media, Facebook, Social Media Content, Collaborative Software, Online Advertising, Marketing, Digital Advertising, Content Creation, Content Development and Management, Team Oriented, Digital Marketing Tools
★ 4.3 (13) · Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: DevSecOps, AI Security, IT Security Architecture, Cyber Operations, Exploit development, Incident Response, AI literacy, Zero Trust Network Access
Intermediate · Course · 3 - 6 Months

Skills you'll gain: Canva (Software), Logo Design, Video Production, Graphic and Visual Design Software, Graphics Software, Graphic and Visual Design, Graphic Design, Video Editing, Content Creation, Social Media Marketing, Marketing Communications
★ 4.5 (39) · Beginner · Guided Project · Less Than 2 Hours

Edureka
Skills you'll gain: Rust (Programming Language), Memory Management, Application Programming Interface (API), Server Side, Code Reusability, Back-End Web Development, System Programming, Web Frameworks, Web Development, Other Programming Languages, Web Servers, Software Documentation, Scalability, Integrated Development Environments, Build Tools, Data Analysis, Maintainability, Network Protocols, Application Development
★ 3.7 (28) · Intermediate · Specialization · 1 - 3 Months

Corporate Finance Institute
Skills you'll gain: Market Data, Equities, Financial Market, Securities (Finance), Market Liquidity, Wealth Management, Investments, Capital Markets, Financial Services, Cash Management, Asset Management, Financial Planning, Product Knowledge
Intermediate · Course · 1 - 3 Months

University of Colorado Boulder
Skills you'll gain: Oil and Gas, Petroleum Industry, Environment, Governance, Energy and Utilities, Environmental Issue, Economic Development, International Relations, Environmental Policy, Socioeconomics, Natural Resource Management, Cultural Diversity, Culture, Transportation Operations, Diplomacy, Climate Change Adaptation, Strategic Thinking, Demography, Public Safety and National Security
★ 4.6 (20) · Beginner · Course · 1 - 4 Weeks

Arizona State University
Skills you'll gain: Intellectual Property, Intrusion Detection and Prevention, Cyber Attacks, Cybersecurity, Data Security, Storytelling, Content Creation, Cyber Security Strategy, Digital Publishing, Vulnerability Assessments, Non-Verbal Communication, Health Technology, Interpersonal Communications, Communication, Personal Care, Constructive Feedback, Problem Solving, Collaboration, Computer Literacy, Data Literacy
★ 4.7 (12) · Beginner · Specialization · 3 - 6 Months

Infosec
Skills you'll gain: Data Governance, Information Privacy, Law, Regulation, and Compliance, Personally Identifiable Information, Program Development, Data Sharing, Risk Management, Regulatory Requirements, Organizational Structure
★ 4.7 (24) · Mixed · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Classification And Regression Tree (CART), Model Deployment, Model Optimization, Decision Tree Learning, Predictive Modeling, Model Evaluation, Model Training, Predictive Analytics, Machine Learning Methods, Random Forest Algorithm, Applied Machine Learning, Data-Driven Decision-Making, Performance Tuning, Feasibility Studies, Scikit Learn (Machine Learning Library), Data Visualization, Performance Analysis, Statistical Methods, Cost Benefit Analysis, Performance Measurement
Intermediate · Course · 1 - 4 Weeks