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: MITRE ATT&CK Framework, Open Web Application Security Project (OWASP), Penetration Testing, Exploitation techniques, Distributed Denial-Of-Service (DDoS) Attacks, Mobile Security, Cybersecurity, Brute-force attacks, Network Security, Vulnerability Assessments, Web Applications, Wireless Networks, Encryption, Network Protocols
Intermediate · Course · 1 - 3 Months

Google Cloud
Skills you'll gain: Kubernetes, Firewall, Google Cloud Platform, Infrastructure Security, Network Security, Cloud Security, Load Balancing, Virtual Networking
Intermediate · Course · 1 - 4 Weeks

Universitat Politècnica de València
Skills you'll gain: Cybersecurity, Cyber Attacks, Computer Security Awareness Training, Encryption, Security Awareness, Data Security, Personally Identifiable Information, Cyber Risk, Malware Protection, General Data Protection Regulation (GDPR), Information Privacy, Multi-Factor Authentication, Identity and Access Management
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Firewall, Intrusion Detection and Prevention, Network Security, Virtual Networking, Cloud Security, Threat Detection, Security Management, Google Cloud Platform, Performance Tuning
Intermediate · Course · 1 - 3 Months

Google Cloud
Skills you'll gain: Firewall, Intrusion Detection and Prevention, Network Security, Virtual Networking, Cloud Security, Infrastructure Security, Threat Detection
Intermediate · Course · 1 - 3 Months

University of California San Diego
Skills you'll gain: Unit Testing, Growth Mindedness, Data Structures, Graph Theory, Event-Driven Programming, Social Network Analysis, Interactive Data Visualization, Java, Java Programming, Network Analysis, Object Oriented Programming (OOP), Technical Communication, User Interface (UI), JUnit, Object Oriented Design, Computer Programming, Adaptability, Performance Tuning, Algorithms, Problem Solving
Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Risk Management, Governance, ISO/IEC 27001, Enterprise Risk Management (ERM), Cyber Governance, NIST 800-53, Cyber Risk, Compliance Management, Security Controls, Program Implementation, Regulatory Compliance, Cybersecurity, Cyber Security Strategy, Business Continuity, Asset Management
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Encryption, Cybersecurity, Cyber Attacks, Threat Management, Security Strategy, Authentications, Threat Detection, Network Security, Authorization (Computing), Cryptography, Data Security, Active Directory, Identity and Access Management, Firewall, Multi-Factor Authentication
Beginner · Course · 1 - 3 Months

Skills you'll gain: Data Storytelling, Predictive Analytics, Data Presentation, Responsible AI, Predictive Modeling, Strategic Decision-Making, Data-Driven Decision-Making, Business Intelligence, Data Visualization, Decision Making, Artificial Intelligence and Machine Learning (AI/ML), Scikit Learn (Machine Learning Library), Business Marketing, Natural Language Processing, Text Mining, Python Programming, Reinforcement Learning, Data Security, Network Analysis, Security Awareness
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Firewall, Intrusion Detection and Prevention, Network Security, Cloud Security, Virtual Networking, Infrastructure Security, Security Controls, Threat Detection
Intermediate · Course · 1 - 3 Months

Dartmouth College
Skills you'll gain: Bayesian Network, Artificial Neural Networks, Convolutional Neural Networks, Deep Learning, Tensorflow, Machine Learning, Model Evaluation, Network Architecture, Algorithms, Probability Distribution
Build toward a degree
Intermediate · Course · 1 - 3 Months

Packt
Skills you'll gain: Threat Management, Vulnerability Assessments, Incident Response, Computer Security Incident Management, Public Key Infrastructure, IT Security Architecture, Disaster Recovery, Vulnerability Management, Regulation and Legal Compliance, Threat Detection, Cyber Security Assessment, Risk Management, Compliance Management, Regulatory Compliance, Network Security, Infrastructure Security, Cloud Security, Hardening, Security Engineering, Software-Defined Networking
Beginner · Specialization · 1 - 4 Weeks