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: Database Design, Software Design, User Experience Design, Database Theory, Usability, UI/UX Research, Usability Testing, User Interface and User Experience (UI/UX) Design, Relational Databases, Software Visualization, Software Architecture, Software Design Patterns, User Interface (UI) Design, Application Security, Design Strategies, Security Software, Servers, Operating Systems
★ 4.7 (135) · Intermediate · Course · 1 - 3 Months

Coursera
Skills you'll gain: Simulation and Simulation Software, Simulations, Microbiology, Network Model, Biology, Programming Principles, Mathematical Modeling, Computer Programming
★ 4.2 (59) · Intermediate · Guided Project · Less Than 2 Hours

Fractal Analytics
Skills you'll gain: AI Security, Vector Databases, Responsible AI, Data Strategy, Data Ethics, Data Management, Data Security, Generative AI, Generative AI Agents, Data Mapping, AI Integrations, Data Governance, Containerization, Data Architecture, Retrieval-Augmented Generation, Interoperability, Enterprise Architecture, Metadata Management, Data Pipelines, Artificial Intelligence and Machine Learning (AI/ML)
★ 4.6 (14) · Intermediate · Specialization · 1 - 3 Months

Skills you'll gain: Dataflow, Serverless Computing, Identity and Access Management, Data Pipelines, Google Cloud Platform, Cloud Security, Data Processing, Data Security, Cloud Storage, Containerization
★ 4.1 (94) · Intermediate · Course · 1 - 3 Months

LearnQuest
Skills you'll gain: Active Listening, Prospecting and Qualification, Sales Prospecting, Sales Development, Sales, Rapport Building, Value Propositions, Sales Pipelines, Lead Generation, General Sales Practices, User Research, Sales Process, Persona Development, Cold Calling, Intercultural Competence, Communication, Interpersonal Communications, Customer Analysis, Cultural Responsiveness, Cultural Sensitivity
Mixed · Course · 1 - 4 Weeks

University of California San Diego
Skills you'll gain: Data Ethics, Interactive Learning, Big Data, Cybersecurity, Student Engagement, Pedagogy, General Networking, Blockchain, Digital pedagogy, Algorithms, Data Security, Teaching, digital literacy, Cryptography, Spatial Data Analysis, Technical Communication, Diversity Awareness, Education Software and Technology, Distributed Computing, Diversity Equity and Inclusion Initiatives
★ 4.6 (63) · Beginner · Specialization · 3 - 6 Months

Unilever
Skills you'll gain: Web Analytics, Social Media Campaigns, Campaign Management, Web Analytics and SEO, Digital Marketing, Google Analytics, Social Media Marketing, Search Engine Marketing, Digital Media Strategy, Social Media Strategy, Marketing Strategies, Search Engine Optimization, Keyword Research, Online Advertising, Marketing Analytics, A/B Testing, Social Media, Campaign Planning, Advertising Campaigns, Value Propositions
★ 4.8 (65) · Beginner · Course · 1 - 4 Weeks

Google Cloud
Skills you'll gain: Dashboard Creation, Problem Management, Data Import/Export, Data Access
★ 4.7 (224) · Beginner · Course · 1 - 3 Months

University of Colorado System
Skills you'll gain: Cryptography, Arithmetic, Algorithms, Applied Mathematics, Probability, Computer Science
★ 4.6 (334) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Building Codes, Construction, Safety Standards, Building Services Engineering, Building Design, Facility Management and Maintenance, Hazard Analysis, Safety and Security, Firewall, Design Specifications, Systems Integration
★ 4.6 (79) · Intermediate · Course · 1 - 4 Weeks

Logical Operations
Skills you'll gain: Dynamic Host Configuration Protocol (DHCP), Local Area Networks, Network Protocols, Network Administration, TCP/IP, Wireless Networks, General Networking, Network Architecture, Network Infrastructure, System Configuration, Computer Networking
Mixed · Course · 1 - 4 Weeks

Korea Advanced Institute of Science and Technology(KAIST)
Skills you'll gain: Artificial Intelligence and Machine Learning (AI/ML), Artificial Intelligence, Materials science, AI literacy, Artificial Neural Networks, Process Modeling, Image Analysis, Computer Vision, Manufacturing Processes, Machine Learning
★ 4.7 (51) · Beginner · Course · 1 - 3 Months