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.

Meta
Skills you'll gain: Restful API, SQL, React Native, Database Management, Databases, Application Programming Interface (API), API Design, Relational Databases, Data Persistence, Mobile Development, Data Storage Technologies, Data Management, Application Development, Authentications
★ 4.7 (69) · Intermediate · Course · 1 - 3 Months

University of Manchester
Skills you'll gain: Health Equity, Health Disparities, Public Health and Disease Prevention, Public Health, World History, Healthcare Ethics, Emergency Response, Health Care, Health Systems, Crisis Intervention, Social and Human Services, Safety and Security, Human Services, Ethical Standards And Conduct, International Relations, Infectious Diseases, Social Studies, Mitigation, Policy Analysis, Advocacy
★ 4.7 (289) · Beginner · Course · 1 - 3 Months

University of Amsterdam
Skills you'll gain: Laboratory Experience, Laboratory Procedures, User Feedback, Experimentation, Chemistry
★ 4.7 (150) · Intermediate · Course · 1 - 3 Months

John Wiley & Sons
Skills you'll gain: Linux Administration, Linux, Systems Administration, Shell Script, Operating System Administration, Linux Servers, Web Servers, Apache, Unix Shell, Unix Commands, Linux Commands, File Systems, Nginx, Command-Line Interface, Unix, System Monitoring, Servers, Database Systems, Network Troubleshooting, Computer Networking
Beginner · Course · 1 - 3 Months

Skills you'll gain: Data Security, Information Assurance, Security Controls, Data Integrity, Identity and Access Management, Network Security, IT Security Architecture, Authentications, Cybersecurity, Authorization (Computing), Infrastructure Security, Enterprise Security, User Provisioning
★ 4.5 (8) · Intermediate · Course · 1 - 4 Weeks

EC-Council
Skills you'll gain: Penetration Testing, Cybersecurity, Threat Management, Cloud Security, Mobile Security, Vulnerability Assessments, Network Security, Cyber Security Assessment, Application Security, Threat Detection, Security Testing, Cyber Attacks, Brute-force attacks, MITRE ATT&CK Framework, Encryption, Vulnerability Scanning, Cloud Computing, Exploitation techniques, Web Applications, Wireless Networks
Beginner · Course · 1 - 3 Months
STARWEAVER
Skills you'll gain: Endpoint Detection and Response, Threat Detection, Cyber Threat Hunting, Cyber Threat Intelligence, Intrusion Detection and Prevention, Threat Modeling, Security Information and Event Management (SIEM), Cyber Security Strategy, Exploitation techniques, Cyber Operations, Cybersecurity, Malware Protection, Cyber Attacks, Data Security, System Implementation, Open Source Technology
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Transfer Learning, Fine-tuning, Tensorflow, Natural Language Processing, Keras (Neural Network Library), Embeddings, Model Training, Deep Learning, Classification Algorithms, Model Evaluation, Machine Learning, Software Visualization
★ 4.8 (183) · Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Network Architecture, Virtual Networking, Computer Networking, Network Engineering, Virtualization, Network Infrastructure, Network Planning And Design, Software-Defined Networking, Virtual Private Networks (VPN), Virtualization and Virtual Machines, Network Protocols, Cloud Infrastructure, Wireless Networks, Wide Area Networks, Virtual Machines, Network Routing, Network Performance Management
★ 4.9 (18) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Disaster Recovery, Server Administration, Windows Servers, Microsoft Servers, Servers, Network Troubleshooting, Systems Administration, VMware ESX Servers, IT Infrastructure, Linux Servers, Virtualization and Virtual Machines, Virtualization, Hardware Troubleshooting, Operating System Administration, vCenter Server Management, Virtual Machines, Data Storage Technologies, IT Automation, Remote Access Systems, Data Maintenance
Intermediate · Course · 1 - 4 Weeks

University of Colorado System
Skills you'll gain: Application Security, Vulnerability Assessments, Software Design, Threat Modeling, Vulnerability Management, Security Engineering, Secure Coding, Software Design Patterns, Software Architecture, Software Visualization, Exploitation techniques, Cryptography, Cryptographic Protocols, Blockchain, Public Key Cryptography Standards (PKCS), Data Validation
★ 4.6 (94) · Intermediate · Course · 1 - 3 Months
The Hong Kong University of Science and Technology
Skills you'll gain: Market Liquidity, Analysis, Financial Policy, Economics, Market Data, International Finance, Financial Systems, Economic Development, Financial Market, Market Dynamics, Supply And Demand, Policy Development, Finance
★ 4.8 (341) · Intermediate · Course · 1 - 4 Weeks