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.

CertNexus
Skills you'll gain: Threat Modeling, Cybersecurity, Cyber Threat Intelligence, Threat Management, Information Systems Security, Threat Detection, Security Management, Cyber Risk, Security Strategy, Cyber Security Strategy, Risk Analysis, Computer Security, Risk Mitigation, Risk Management, Network Security, Risk Management Framework, Enterprise Risk Management (ERM), Risk Appetite, Trend Analysis, Technical Documentation
Mixed · Course · 1 - 4 Weeks

Johns Hopkins University
Skills you'll gain: Operations Research, Network Model, Excel Macros, Strategic Decision-Making, Microsoft Excel, Process Optimization, Transportation, Supply Chain, and Logistics, Transportation Operations, Operational Analysis, Business Modeling, Business Analytics, Financial Modeling
Intermediate · Course · 1 - 3 Months

Infosec
Skills you'll gain: Secure Coding, Computer Programming Tools, C and C++, C++ (Programming Language), Software Development Tools, C (Programming Language), Debugging
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Performance Tuning, Python Programming, OS Process Management, Data Processing, Scalability, Database Management
Intermediate · Course · 1 - 4 Weeks

Infosec
Skills you'll gain: Data Governance, Information Privacy, Governance, Law, Regulation, and Compliance, General Data Protection Regulation (GDPR), Compliance Management, Personally Identifiable Information, Regulation and Legal Compliance, Program Development, Data Sharing, Accountability
Mixed · Course · 1 - 4 Weeks

Skillshare
Skills you'll gain: Graphic and Visual Design, Graphic Design, Layout Design, Design Elements And Principles, Visual Design, Storytelling, Creative Design, Design Strategies
Beginner · Course · 1 - 4 Weeks
Skills you'll gain: Blockchain, Cryptography, FinTech, Financial Inclusion, Emerging Technologies, Payment Systems, Distributed Computing, Data Integrity, Public Key Cryptography Standards (PKCS), Business Transformation, Data Security, Information Privacy, Stakeholder Analysis, Intellectual Property, Scalability, Governance
Beginner · Course · 1 - 3 Months

ESSEC Business School
Skills you'll gain: Collaboration, Sustainable Development, Decision Making, Business Transformation, Environmental Issue, Social Impact, Socioeconomics, Systems Thinking, Sustainable Business, Economics, Policy, and Social Studies, Adaptability, Community Development, Cultural Diversity, Governance
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Responsible AI, Tensorflow, PyTorch (Machine Learning Library), AI Personalization, Internet Of Things, Customer Engagement, Artificial Intelligence and Machine Learning (AI/ML), Generative AI, Telecommunications, Artificial Intelligence, Network Performance Management, Wireless Networks, Generative AI Agents, Emerging Technologies, Computer Networking, Network Architecture, Network Protocols, Digital Communications, Communication, System Design and Implementation
Advanced · Course · 1 - 3 Months

University of California, Santa Cruz
Skills you'll gain: Business Communication, Entrepreneurship, Social Media Marketing, Search Engine Optimization, Web Design and Development, Marketing, Workflow Management, Business Planning, E-Commerce, Project Management, Business Strategy, Business Process, Branding, Invoicing, Customer Relationship Management
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Waste Minimization, Environmental Engineering, Sustainable Engineering, Civil Engineering, Environmental Regulations, Sustainable Technologies, Environmental Resource Management, Environmental Laws, Environmental Policy, Transportation Operations, Traffic Flow Optimization, Estimation, Network Routing
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Cloud Development, Serverless Computing, Google Cloud Platform, Cloud Applications, Cloud Services, Application Development, Containerization, Cloud Security, Application Deployment, Identity and Access Management, Integration Testing, Scalability
Beginner · Course · 1 - 3 Months