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.

LearnKartS
Skills you'll gain: JUnit, File I/O, Unit Testing, Program Development, Debugging, Java, Maintainability, Software Development, Secure Coding, Software Testing, Test Case, Authentications, Application Security, Cryptography, Object Oriented Programming (OOP), Eclipse (Software), Integrated Development Environments, Encryption, Data Structures
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Red Hat Enterprise Linux, Command-Line Interface, Linux Administration, User Accounts, Linux, Operating System Administration, Software Installation, System Configuration, Systems Administration, Security Controls, File Management, System Monitoring, User Interface (UI)
Mixed · Course · 1 - 3 Months

University of Colorado Boulder
Skills you'll gain: Social Media Strategy, Social Media Content, Social Media Marketing, Strategic Communication, Paid media, Content Strategy, Digital Media Strategy, Earned Media, Owned Media, Brand Strategy, Content Performance Analysis, Content Creation, Shared Media, Customer Relationship Building, Customer Engagement, Target Audience, Brand Management, Aesthetics
Intermediate · Course · 1 - 4 Weeks

Universidade de São Paulo
Skills you'll gain: Timelines, Cultural Diversity, Anthropology, Liberal Arts, Psychology, Environmental Science, Physics, Biology
Beginner · Course · 1 - 3 Months

Whizlabs
Skills you'll gain: AWS Identity and Access Management (IAM), Identity and Access Management, Amazon Web Services, Amazon S3, Authorization (Computing), Role-Based Access Control (RBAC), Authentications, Single Sign-On (SSO), User Accounts, Data Security, Multi-Factor Authentication, Encryption
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Building Codes, Electric Power Systems, Environmental Regulations, Power Electronics, Sustainable Design, Sustainable Technologies, Energy and Utilities, High Voltage, Electrical Engineering, Electrical Safety, Scalability, Wireless Networks, Capacity Management, Emerging Technologies
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Enterprise Risk Management (ERM), IT Management, Risk Management, Compliance Management, Risk Mitigation, Data Governance, Law, Regulation, and Compliance, Regulatory Requirements, Patch Management, Governance, Vulnerability Management, Data Security, Data Storage, Vendor Management
Intermediate · Course · 1 - 4 Weeks

Infosec
Skills you'll gain: Information Privacy, Personally Identifiable Information, Document Management, Data Governance, Law, Regulation, and Compliance, Training Programs, Compliance Training, Security Awareness, Employee Training, Data Access, Auditing
Mixed · Course · 1 - 4 Weeks

Council on Foreign Relations
Skills you'll gain: International Finance, Policty Analysis, Research, and Development, Negotiation
Beginner · Course · 1 - 3 Months

Skills you'll gain: Professional Networking, Self-Awareness, Personal Development, LinkedIn, Professional Development, Interviewing Skills, Resilience, Adaptability, Communication Strategies, Goal Setting, Community Development, Decision Making, Planning, Entrepreneurship
Beginner · Course · 1 - 3 Months

University of Colorado Boulder
Skills you'll gain: Descriptive Statistics, Statistical Hypothesis Testing, Regression Analysis, Probability Distribution, Statistical Analysis, R Programming, Data Import/Export, Statistical Modeling, Statistical Methods, Tidyverse (R Package), Data Literacy, Plot (Graphics), Statistics, Data Manipulation, Data Analysis, Statistical Inference, Data Structures
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Jenkins, Continuous Integration, Software Configuration Management, Continuous Monitoring, Configuration Management, DevOps, Devops Tools, Continuous Delivery, Continuous Deployment, User Accounts, Authentications, Authorization (Computing)
Intermediate · Course · 1 - 4 Weeks