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 System
Skills you'll gain: Risk Management Framework, Infrastructure Security, Cyber Security Policies, Security Management, NIST 800-53, Cybersecurity, Cyber Security Strategy, Security Strategy, Cyber Risk, System Monitoring
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Package and Software Management, User Accounts, Unix Commands, Unix, Bash (Scripting Language), Command-Line Interface, Kubernetes, Git (Version Control System), GitHub, OS Process Management, Firewall, Ubuntu, Docker (Software), Containerization, Network Monitoring, Unix Shell, File Systems, Shell Script, TCP/IP, Version Control
Beginner · Specialization · 3 - 6 Months

Peking University
Skills you'll gain: C++ (Programming Language), Object Oriented Programming (OOP), File I/O, Computer Programming, Programming Principles, C (Programming Language), Algorithms, Maintainability, Data Structures, Software Design, Scalability
Mixed · Course · 1 - 3 Months

LearnQuest
Skills you'll gain: Sales Management, Team Leadership, Sales Training, Virtual Teams, Team Management, Sales Enablement, Team Motivation, Sales, Team Performance Management, Sales Pipelines, Sales Process, Innovation, Overcoming Objections, Conflict Management, Performance Analysis, Employee Onboarding, Drive Engagement, Employee Retention, Customer Engagement, Recognizing Others
Beginner · Specialization · 1 - 3 Months

Universidad Austral
Skills you'll gain: Social Media, Social Media Strategy, Social Media Marketing, Social Media Campaigns, LinkedIn, Facebook, Content Strategy, Professional Networking, Instagram, Content Creation, Key Performance Indicators (KPIs), Marketing Strategy and Techniques, Digital Advertising, Marketing, Digital Marketing, Budget Management, Lead Generation, Photography, Target Audience
Beginner · Course · 1 - 4 Weeks

Northwestern University
Skills you'll gain: Blogs, Social Media Marketing, Marketing Strategies, Social Media Strategy, Social Media, Content Marketing, Marketing Effectiveness, Strategic Marketing, Digital Media Strategy, Target Market, Drive Engagement, Customer Engagement, Content Creation, Multimedia, Writing
Mixed · Course · 1 - 4 Weeks

Johns Hopkins University
Skills you'll gain: MITRE ATT&CK Framework, Open Web Application Security Project (OWASP), Penetration Testing, Exploitation techniques, Distributed Denial-Of-Service (DDoS) Attacks, Mobile Security, Cybersecurity, Brute-force attacks, Network Security, Vulnerability Assessments, Web Applications, Wireless Networks, Encryption, Network Protocols
Intermediate · Course · 1 - 3 Months

University of Illinois Urbana-Champaign
Skills you'll gain: Networking Hardware, Network Infrastructure, Network Routers, Network Switches, Network Architecture, Cloud Infrastructure, Internet Of Things, General Networking, Network Administration, Network Protocols, Infrastructure Security, Wireless Networks, Network Planning And Design, Network Security, System Implementation, Cloud Computing, System Monitoring
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: JUnit, Test Driven Development (TDD), Version Control, Git (Version Control System), GitHub, Performance Tuning, Unit Testing, Data Structures, Java Programming, Algorithms, Software Testing, Java, Computer Programming, Software Development, Scalability
Beginner · Course · 1 - 4 Weeks

University of Illinois Urbana-Champaign
Skills you'll gain: Distributed Computing, File Systems, Cloud Computing, Operating Systems, Transaction Processing, Network Security, Data Centers, Authorization (Computing), Apache Hadoop, Data Store, Authentications, Cryptography, NoSQL, Algorithms
Mixed · Course · 1 - 3 Months

Johns Hopkins University
Skills you'll gain: Artificial Neural Networks, Image Analysis, Event-Driven Programming, Scalability, Deep Learning, C and C++, Performance Tuning, Convolutional Neural Networks, Data-oriented programming, Distributed Computing, Linear Algebra, Computer Graphics, Hardware Architecture, Mathematical Software, Numerical Analysis, Programming Principles, Computer Architecture, System Programming, Program Development, Machine Learning
Build toward a degree
Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Email Marketing, Paid media, Order Fulfillment, Media Planning, Social Media Campaigns, Social Media, Google Ads, Social Media Marketing, Social Media Strategy, Performance Measurement, Customer Acquisition Management, Brand Loyalty, Search Engine Marketing, Content Creation, E-Commerce, Target Audience, Customer Relationship Management, Customer Retention, Marketing Analytics, Campaign Management
Beginner · Professional Certificate · 3 - 6 Months