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 at Buffalo
Skills you'll gain: Blockchain, Test Driven Development (TDD), Cryptography, Development Testing, Application Development, Transaction Processing, Emerging Technologies, Integrated Development Environments, Software Architecture, Network Protocols, Encryption, Web Applications, Program Development, Distributed Computing, Application Programming Interface (API), Microsoft Azure, FinTech, Development Environment, Web Language, Web Development Tools
Intermediate · Specialization · 3 - 6 Months

Infosec
Skills you'll gain: Authentications, Cryptography, Secure Coding, Kotlin, Android (Operating System), OAuth, Encryption, Mobile Security, Android Development, Key Management, Exploit development, Application Security, Android Studio, Data Security, Open Web Application Security Project (OWASP), Authorization (Computing), Mobile Development, Security Engineering, Security Controls, Application Development
Intermediate · Specialization · 1 - 3 Months

Skills you'll gain: Systems Administration, Operating System Administration, Information Systems Security, Remote Access Systems, IT Infrastructure, Network Troubleshooting, OSI Models, Computer Networking, Routing Protocols, Desktop Support, Application Security, TCP/IP, Security Strategy, Server Administration, Security Awareness, Technical Support, Microsoft Windows, Computer Hardware, Software Installation, Help Desk Support
Beginner · Professional Certificate · 3 - 6 Months

Skills you'll gain: Social Media Marketing, Social Media Strategy, Social Media Management, Content Creation, Instagram, Digital Marketing, Digital Advertising, Customer Engagement, Brand Awareness, Marketing Analytics, Target Audience
Beginner · Course · 1 - 3 Months

Skills you'll gain: Secure Coding, Kotlin, Mobile Security, Android (Operating System), Android Development, Open Web Application Security Project (OWASP), Mobile Development, Application Security, Mobile Development Tools, Data Validation, Data Cleansing, Data Security, Application Deployment
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Social Media Marketing, Target Audience, Social Media Strategy, Social Media, Persona Development, Smart Goals, Key Performance Indicators (KPIs), Social Media Management, Digital Media Strategy, Marketing, Marketing Strategies, Facebook, Marketing Channel, Instagram, Digital Marketing
Beginner · Course · 1 - 3 Months

LearnQuest
Skills you'll gain: Version Control, Git (Version Control System), Linux, Cloud Computing Architecture, DevOps, Virtualization, Cloud Computing, Cloud Infrastructure, Containerization, Infrastructure As A Service (IaaS), Software As A Service, Virtual Networking, Virtual Machines, Platform As A Service (PaaS)
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Kubernetes, Role-Based Access Control (RBAC), Scalability, Network Security, System Monitoring, Network Monitoring, Continuous Monitoring, Capacity Management, Application Performance Management, Performance Tuning
Advanced · Course · 1 - 4 Weeks

Skills you'll gain: Exploratory Data Analysis, Feature Engineering, Data Analysis, Data Preprocessing, Model Evaluation, Data Cleansing, Data Transformation, Predictive Modeling, Pandas (Python Package), Applied Machine Learning, Statistical Methods, Regression Analysis, Scikit Learn (Machine Learning Library), Artificial Neural Networks
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: IT Automation, IT Infrastructure, Amazon Web Services, Cloud Deployment, System Configuration, Security Controls
Intermediate · Course · 1 - 4 Weeks

IBM
Skills you'll gain: COBOL (Programming Language), File I/O, IBM Cloud, Mainframe Computing, Programming Principles, Mainframe Technologies, Procedure Development, Program Development, Data Structures, Debugging, Editing
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Systems Administration, Virtual Machines, Scalability
Beginner · Course · 1 - 4 Weeks