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 of Colorado Boulder
Skills you'll gain: Data Science, Model Evaluation, Statistical Machine Learning, Dimensionality Reduction, Statistical Modeling, R Programming, Statistical Analysis, Statistical Methods, Regression Analysis, Statistics, Applied Mathematics, Logistic Regression
Build toward a degree
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Machine Learning, Data Ethics, Responsible AI, Technical Communication, Statistical Machine Learning, Predictive Analytics, Supervised Learning, Model Evaluation, Artificial Intelligence, Data Analysis, Decision Tree Learning, Machine Learning Algorithms, Logistic Regression, Classification Algorithms, Artificial Neural Networks
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Virtual Machines, Google Cloud Platform, Microsoft Azure, Load Balancing, Cloud Computing Architecture, Virtualization and Virtual Machines, Public Cloud, Multi-Cloud, Cloud Infrastructure, Virtual Networking, Network Routing, Firewall, Scalability
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Ansible, Red Hat Enterprise Linux, Package and Software Management, User Accounts, OS Process Management, Linux Administration, Network Administration, Data Storage, Systems Administration, Infrastructure as Code (IaC), YAML
Intermediate · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Social Media Content, Social Media Management, Content Creation, Social Media Marketing, Social Media, Social Media Campaigns, Social Media Strategy, Content Marketing, Content Management
Beginner · Guided Project · Less Than 2 Hours

University of Maryland, College Park
Skills you'll gain: Brainstorming, User Story, Creative Thinking, Innovation, Design Thinking, Critical Thinking and Problem Solving, Solution Design, Agile Methodology, Problem Solving, Agile Product Development, Empathy, Requirements Analysis, Complex Problem Solving, Risk Management, Lean Methodologies, Process Improvement
Intermediate · Course · 1 - 3 Months

Johns Hopkins University
Skills you'll gain: Data Science, Data Management, Organizational Effectiveness, Data Analysis, Data-Driven Decision-Making, Project Design, Data Presentation, Exploratory Data Analysis, Machine Learning, Predictive Modeling, Statistical Inference
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Microsoft Visual Studio, Cloud Computing Architecture, Managed Services, Continuous Deployment, Cloud Computing, Integrated Development Environments, Microsoft SQL Servers, Cloud Security, Cloud Storage, Database Management, Web Applications
Intermediate · Course · 1 - 4 Weeks

Cisco Learning and Certifications
Skills you'll gain: Routing Protocols, TCP/IP, System Configuration, Continuous Monitoring
Beginner · Course · 1 - 3 Months

Skills you'll gain: Continuous Monitoring, Cloud Security, Cloud Storage, Data Security, Data Loss Prevention, Personally Identifiable Information, Google Cloud Platform, Data Management
Intermediate · Project · Less Than 2 Hours

Skills you'll gain: Virtual Networking, Computer Networking, Network Architecture, Cloud Infrastructure, Software-Defined Networking, Automation, Google Cloud Platform, Virtual Private Networks (VPN), Cloud Security, Cloud Applications, Wide Area Networks
Intermediate · Project · Less Than 2 Hours

Johns Hopkins University
Skills you'll gain: Big Data, Apache Hadoop, Data Infrastructure, Data Processing, Analytics, Data Science, Distributed Computing, Linux, Software Installation, Scalability, System Configuration
Intermediate · Course · 1 - 4 Weeks