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.

LearnQuest
Skills you'll gain: Kubernetes, Application Deployment, Cloud Deployment, Containerization, Authentications, Authorization (Computing), Cloud-Native Computing, Cloud Infrastructure, Microservices, Infrastructure Architecture, Cloud Computing Architecture, Data Persistence, Software Architecture, Scalability, Command-Line Interface
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Security Controls, Governance Risk Management and Compliance, Risk Management, Business Risk Management, Compliance Management, Compliance Auditing, Enterprise Risk Management (ERM), Data Security, Information Privacy, Continuous Monitoring, Auditing, Information Systems Security, Regulatory Compliance, Verification And Validation, Risk Analysis, Document Management, Scope Management, Asset Protection
Beginner · Course · 1 - 3 Months

Johns Hopkins University
Skills you'll gain: Bioinformatics, Unix Commands, Biostatistics, Exploratory Data Analysis, Statistical Analysis, Unix, Data Science, Data Management, Statistical Methods, Command-Line Interface, Statistical Hypothesis Testing, Linux Commands, Data Analysis Software, Data Quality, Data Structures, Data Analysis, Computer Science, Molecular Biology, R Programming, Python Programming
Intermediate · Specialization · 3 - 6 Months

University of California, Irvine
Skills you'll gain: Network Security, Computer Hardware, Computer Systems, TCP/IP, Information Technology, General Networking, Computer Literacy, Network Protocols, Operating Systems, Computer Networking, Software Systems, File Systems
Beginner · Course · 1 - 4 Weeks

Kennesaw State University
Skills you'll gain: Cyber Governance, Vulnerability Management, Cyber Attacks, Cybersecurity, Cyber Risk, Threat Management, Cyber Threat Intelligence, Security Management, Vulnerability Assessments, Threat Detection, Cyber Security Strategy, Risk Management, Security Awareness, Information Systems Security, Cyber Operations, Incident Response, Network Security, Risk Analysis, Asset Management
Beginner · Course · 1 - 3 Months

LearnQuest
Skills you'll gain: SQL, Oracle Databases, Database Design, Database Management, Query Languages, Performance Tuning, Data Structures
Beginner · Course · 1 - 4 Weeks

Packt
Skills you'll gain: Secure Coding, API Testing, Application Programming Interface (API), Security Testing, Open Web Application Security Project (OWASP), Penetration Testing, Application Security, Restful API, Authentications, Personally Identifiable Information, Brute-force attacks, Security Engineering, Threat Modeling, Distributed Denial-Of-Service (DDoS) Attacks, Vulnerability Assessments, Exploitation techniques, Data Security, Business Logic, Authorization (Computing), Cybersecurity
Intermediate · Course · 1 - 3 Months

Infosec
Skills you'll gain: Incident Response, Computer Security Incident Management, Threat Management, Cyber Operations, Incident Management, Cybersecurity, Disaster Recovery, Cyber Threat Hunting, Intrusion Detection and Prevention, Security Management, Cyber Threat Intelligence, Digital Forensics, Threat Detection, Cyber Attacks, Cyber Security Assessment, Event Monitoring, Network Security, Data Security, Business Continuity, Analysis
Beginner · Specialization · 3 - 6 Months

Johns Hopkins University
Skills you'll gain: Rmarkdown, Version Control, Data Science, R (Software), GitHub, Data Literacy, Data Analysis, R Programming, Statistical Programming, Exploratory Data Analysis, Software Installation
Mixed · Course · 1 - 4 Weeks

SAE Institute México
Skills you'll gain: Penetration Testing, Metasploit, Vulnerability Scanning, Exploitation techniques, Vulnerability Assessments, Intrusion Detection and Prevention, Cyber Security Assessment, Virtual Environment, Network Analysis, Command-Line Interface, Virtual Machines, Linux Commands
Beginner · Course · 1 - 4 Weeks

LearnQuest
Skills you'll gain: Responsible AI, Data Ethics, OpenAI, Artificial Intelligence, Large Language Modeling, Ethical Standards And Conduct, Analytical Skills, Analysis, Machine Learning, Game Theory, Generative AI, Predictive Modeling
Intermediate · Course · 1 - 4 Weeks

LearnQuest
Skills you'll gain: Java Platform Enterprise Edition (J2EE), Application Deployment, Web Applications, Application Servers, Java, Web Servers, Java Programming, Object-Relational Mapping, Web Development, Context Management, Application Frameworks, Scripting, Middleware, Server Side, Data Storage, Session Initiation Protocols, Data Sharing, Data Persistence, Event-Driven Programming, Hypertext Markup Language (HTML)
Intermediate · Specialization · 1 - 3 Months