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 Florida
Skills you'll gain: Medical Equipment and Technology, Medical Devices, Healthcare Ethics, Health Technology, Internet Of Things, Patient Safety, Telehealth, Vulnerability, Medical Telemetry, Safety Standards, Medical Privacy, Legal Risk, Data Ethics, Regulatory Compliance, Law, Regulation, and Compliance, Patient Advocacy, Threat Modeling, Security Awareness, Cybersecurity
★ 4.4 (29) · Mixed · Course · 1 - 3 Months

Skills you'll gain: Open Web Application Security Project (OWASP), API Design, Application Programming Interface (API), Application Security, Secure Coding, Security Controls, Vulnerability Assessments, Authorization (Computing), Hardening, Cryptographic Protocols, Cryptography, Authentications, Exploitation techniques
Intermediate · Course · 1 - 4 Weeks

SkillUp
Skills you'll gain: Group Policy, Dynamic Host Configuration Protocol (DHCP), Azure Active Directory, Active Directory, Windows Servers, Hyper-V, Remote Access Systems, iSCSI Configuration, Virtual Private Networks (VPN), Containerization, Kubernetes, Microsoft Servers, Microsoft Windows, Docker (Software), Hybrid Cloud Computing, Virtualization, Virtual Machines, Server Administration, Network Administration, Virtual Networking
★ 4.6 (10) · Intermediate · Specialization · 1 - 3 Months

LearnQuest
Skills you'll gain: Inside Sales, Sales, Sales Prospecting, Sales Training, Sales Strategy, Web Presence, Selling Techniques, Prospecting and Qualification, Product Demonstration, Virtual Teams, Digital Brand Strategy, Technical Sales, Sales Pipelines, Rapport Building, Sales Presentations, Relationship Building, Virtual Environment, Customer Engagement, Customer Success Management, Drive Engagement
Beginner · Specialization · 1 - 3 Months

Korea Advanced Institute of Science and Technology(KAIST)
Skills you'll gain: Linear Algebra, Artificial Intelligence and Machine Learning (AI/ML), Artificial Intelligence, Applied Mathematics, Deep Learning, Machine Learning
★ 4.4 (33) · Beginner · Course · 1 - 3 Months

Skills you'll gain: Content Performance Analysis, Content Optimization, Web Analytics and SEO, Content Creation, Web Content, Search Engine Optimization, Performance Analysis, Digital Publishing, Content Marketing, Driving engagement, Content Management Systems, Web Analytics, Performance Measurement, Performance Metric, Performance Improvement, Data-Driven Marketing, Copywriting, Process Optimization, Benchmarking, Data-Driven Decision-Making
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Cyber Operations, Threat Management, Threat Detection, Cybersecurity, Exploitation techniques, Scripting, IT Automation, Python Programming, Scripting Languages
★ 4.7 (41) · Intermediate · Course · 1 - 4 Weeks

Peking University
Skills you'll gain: IT Security Architecture, Computer Security, Secure Coding, Authorization (Computing), Security Engineering, Systems Architecture, Program Development, Operating Systems, Information Systems Security, Security Controls, Security Requirements Analysis, Identity and Access Management, Virtual Machines, Virtualization, Authentications, Data Integrity
★ 3.7 (13) · Intermediate · Course · 3 - 6 Months

Skills you'll gain: Blockchain, Secure Coding, Authorization (Computing), Token Optimization, Role-Based Access Control (RBAC), User Provisioning, Authentications, Application Security, Identity and Access Management, Other Programming Languages, Program Development, Programming Principles, Transaction Processing, Test Script Development, Software Development, Application Deployment
★ 4.9 (42) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Exploitation techniques, Metasploit, Vulnerability Assessments, Vulnerability Scanning, Security Testing, Security Controls, Brute-force attacks, Virtual Environment, Cybersecurity, Virtual Machines, Technical Writing, Technical Documentation, Linux
★ 4 (7) · Beginner · Course · 1 - 3 Months

Amazon Web Services
Skills you'll gain: Software As A Service, Scalability, Amazon Web Services, Cloud Applications, Cloud Development, Cloud Management, Cloud Deployment, Application Security, Systems Integration, Cloud-Based Integration, Multi-Tenant Cloud Environments, Cloud Security, Performance Tuning
★ 4.5 (49) · Beginner · Course · 1 - 4 Weeks

The University of Edinburgh
Skills you'll gain: Pulmonology, Chronic Diseases, Respiratory Care, Primary Care, Pulmonary Function Testing, Respiration, Patient Evaluation, Rehabilitation, Psychosocial Assessments, Diagnostic Tests, Treatment Planning, Health Equity, Care Management, Patient Education and Support, Community Health, Patient-centered Care, Pharmacotherapy, Behavioral Health
★ 4.8 (9) · Mixed · Course · 1 - 3 Months