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.

Johns Hopkins University
Skills you'll gain: Penetration Testing, MITRE ATT&CK Framework, Metasploit, Public Key Infrastructure, Exploit development, Exploitation techniques, Cybersecurity, Cryptography, Mobile Security, Cyber Operations, Cryptographic Protocols, Security Testing, Vulnerability Scanning, Application Security, Network Security, Operating Systems, Encryption, Hardening, Vulnerability Assessments, Computer Security
★ 4 (20) · Intermediate · Specialization · 3 - 6 Months

The State University of New York
Skills you'll gain: Persuasive Communication, Emergency Response, Conflict Management, Mediation, Leadership, Clinical Leadership, Mitigation, Interviewing Skills, Safety and Security, Intercultural Competence, Health Disparities, De-escalation Techniques, Hazard Communication (HazCom), Cultural Sensitivity, Risk Management, Communication, Social Determinants Of Health, Cultural Diversity, Community Health, Public Health
★ 4.7 (298) · Beginner · Specialization · 1 - 3 Months

University of London
Skills you'll gain: Social Justice, Conflict Management, Sustainable Development, Social Impact, International Relations, Community and Social Work, Social Work, Sociology, Advocacy, World History, Demography, Law, Regulation, and Compliance, Storytelling, Peer Review
★ 4.8 (92) · Beginner · Course · 1 - 3 Months

Microsoft
Skills you'll gain: Microsoft Power Platform, Power Platform Architecture & Technical Design, No-Code Development, Data Integration, Data Store, Data Access, Database Management Systems, Application Development, Case Studies, Business Solutions, Data Security, Value Propositions
★ 4.5 (195) · Beginner · Course · 1 - 4 Weeks

28DIGITAL
Skills you'll gain: Cybersecurity, Threat Modeling, Cyber Attacks, Computer Security, Security Management, Cyber Security Strategy, Cyber Threat Intelligence, Threat Management, Cyber Risk, Cyber Security Assessment, Network Security, Risk Management, Risk Analysis, Data Security, Exploitation techniques, Information Privacy, Vulnerability Assessments, Business Economics
★ 4.8 (12) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: Database Design, Relational Databases, SQL, Database Development, Databases, R Programming, R (Software), Data Science, Query Languages, Data Access, Data Manipulation, Data Analysis
★ 4.4 (194) · Beginner · Course · 1 - 3 Months

Coursera
Skills you'll gain: Apache Airflow, Model Optimization, Data Validation, Image Analysis, Transfer Learning, Data Preprocessing, Data Integrity, Model Evaluation, Debugging, Computer Vision, PyTorch (Machine Learning Library), Data Pipelines, Feature Engineering, MLOps (Machine Learning Operations), Tensorflow, Model Training, Embeddings, Performance Tuning, Deep Learning, Digital Signal Processing
Advanced · Specialization · 3 - 6 Months

Skills you'll gain: Hibernate (Java), Object-Relational Mapping, CI/CD, Spring Boot, Restful API, Java Programming, Integration Testing, Continuous Integration, Database Development, Cloud Deployment, Application Security, Java, Containerization, Spring Framework, SQL, NoSQL, Docker (Software), Kubernetes, Test Driven Development (TDD), Object Oriented Design
★ 4.5 (51) · Beginner · Specialization · 1 - 3 Months

Infosec
Skills you'll gain: Network Analysis, Network Security, Intrusion Detection and Prevention, Cybersecurity, Threat Detection, Network Monitoring, Anomaly Detection, Exploitation techniques
★ 4.6 (37) · Mixed · Course · 1 - 4 Weeks

University of Maryland, College Park
Skills you'll gain: Closing (Sales), Sales Process, Sales Presentation, Technical Sales, Sales, Sales Development, Sales Management, Sales Strategy, Solution Sales Engineering, Prospecting and Qualification, Emerging Technologies, Needs Assessment, Negotiation, Proposal Development, Cloud Computing, Cybersecurity
★ 4.7 (162) · Beginner · Course · 1 - 3 Months

John Wiley & Sons
Skills you'll gain: Personally Identifiable Information, Data Governance, Law, Regulation, and Compliance, Information Privacy, Data Management, General Data Protection Regulation (GDPR), Data Security, Labor Compliance, Legal Risk, Compliance Management, Regulation and Legal Compliance, Risk Management Framework, Information Management, Risk Management, Data Ethics, Regulatory Compliance, Court Systems, Incident Response, Legal Strategy, Cybersecurity
Beginner · Specialization · 1 - 3 Months
Google Cloud
Skills you'll gain: Google Workspace, Gmail, Google Gemini, Group Policy, Service Management, Scripting, Automation, Document Management, System Configuration, Collaborative Software, Configuration Management, Cloud Storage
★ 4.7 (1K) · Beginner · Course · 1 - 4 Weeks