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.

Skills you'll gain: Digital Forensics, Cyber Threat Hunting, Incident Response, Cyber Threat Intelligence, Penetration Testing, Computer Security Incident Management, Threat Detection, MITRE ATT&CK Framework, Cryptography, Security Testing, Incident Management, Application Security, Encryption, Security Management, Cybersecurity, Vulnerability Scanning, Cyber Security Assessment, Brute-force attacks, Vulnerability Assessments, Security Awareness
★ 4.7 (4.5K) · Beginner · Specialization · 3 - 6 Months

Cisco Learning and Certifications
Skills you'll gain: Devops Tools, Development Environment, Software Development Tools, Software Development Methodologies, CI/CD, DevOps, IT Automation, Continuous Deployment, Version Control, Continuous Integration, Network Engineering, Program Development, Docker (Software), Network Infrastructure, Containerization, Software Development, Virtual Environment, Git (Version Control System), Waterfall Methodology, Software Design
★ 4.7 (33) · Intermediate · Course · 1 - 4 Weeks

Edureka
Skills you'll gain: AI Security, Responsible AI, Incident Response, Computer Security Incident Management, Data Ethics, Generative AI, LLM Application, Large Language Modeling, Generative Model Architectures, Prompt Patterns, Threat Modeling, Security Testing, Cybersecurity, IT Security Architecture, Artificial Intelligence, Machine Learning, Security Management, MLOps (Machine Learning Operations), Agentic systems, Ethical Standards And Conduct
★ 3.5 (6) · Beginner · Specialization · 3 - 6 Months

Cisco Learning and Certifications
Skills you'll gain: Postman API Platform, Restful API, Authentications, Application Programming Interface (API), Scripting, JSON, Extensible Languages and XML, IT Automation, Extensible Markup Language (XML), API Testing, Network Protocols, YAML, Network Monitoring, Automation, Network Engineering, Scripting Languages, Python Programming, Real Time Data
★ 4.6 (34) · Intermediate · Course · 1 - 4 Weeks
University of Michigan
Skills you'll gain: Network Analysis, Social Network Analysis, Network Model, Graph Theory, Data Analysis, Predictive Analytics, Python Programming, Algorithms
★ 4.6 (2.7K) · Intermediate · Course · 1 - 4 Weeks

Packt
Skills you'll gain: Data Security, Data Loss Prevention, Security Management, Data Management, Security Controls, Information Assurance, Data Governance, Information Management, Data Storage
★ 4.6 (19) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Cybersecurity, Cyber Attacks, Data Security, Authentications, Authorization (Computing), Application Security, Security Controls, Personally Identifiable Information, Security Awareness, Endpoint Security, Identity and Access Management, Information Privacy, Cryptography, Data Loss Prevention, Malware Protection, Hardening, Encryption, Vulnerability Assessments, Multi-Factor Authentication, Data Integrity
★ 4.8 (1.2K) · Beginner · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Network Analysis, Social Network Analysis, Network Model, Marketing Analytics, Social Media Analytics, Statistical Methods, Text Mining, Data Structures, JSON, Data Visualization Software, Data Processing, Python Programming, Feature Engineering
★ 2.8 (6) · Intermediate · Course · 1 - 4 Weeks

Macquarie University
Skills you'll gain: Information Privacy, Data Security, Security Testing, Threat Detection, Responsible AI, Data Governance, Cyber Threat Intelligence, Data Management, Cyber Attacks, Cloud Security, Cyber Security Strategy, Cybersecurity, Data Loss Prevention, Data Integrity, Security Management, Security Controls, Security Awareness, Cyber Operations, Artificial Intelligence and Machine Learning (AI/ML), Data Science
★ 4.5 (32) · Beginner · Specialization · 3 - 6 Months

Coursera
Skills you'll gain: Security Controls, Vulnerability Scanning, ISO/IEC 27001, Penetration Testing, Vulnerability Assessments, Security Information and Event Management (SIEM), Data Security, Compliance Auditing, Security Assertion Markup Language (SAML), Risk Management Framework, Computer Security Incident Management, Multi-Factor Authentication, Authentications, Computer Security Awareness Training, Single Sign-On (SSO), Event Monitoring, Authorization (Computing), Encryption, Advanced Encryption Standard (AES), End User Training and Support
Intermediate · Course · 1 - 4 Weeks

Packt
Skills you'll gain: Incident Response, Disaster Recovery, Incident Management, Security Management, Cyber Operations, Business Continuity Planning, Safety and Security, Change Control, Threat Management, Information Technology Operations, Security Information and Event Management (SIEM), Patch Management, Security Controls, Cybersecurity, Threat Detection, Intrusion Detection and Prevention, Configuration Management, Continuous Monitoring, Vulnerability Management, Digital Forensics
★ 4.8 (22) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Virtual Networking, Enterprise Architecture, Virtualization, Network Architecture, Network Planning And Design, Network Engineering, Virtual Private Networks (VPN), Virtual Machines, Network Infrastructure, Network Model, Wide Area Networks, Software-Defined Networking, Wireless Networks, Network Performance Management, Network Switches
★ 4.6 (7) · Intermediate · Course · 1 - 3 Months