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.

Skills you'll gain: Public Key Infrastructure, Cryptography, Key Management, Encryption, Windows Servers, Cryptographic Protocols, Infrastructure Security, Web Servers, Active Directory, Digital Communications, Microsoft Servers, Network Infrastructure, Authentications, Server Administration, System Configuration, Data Integrity, Data Migration
Intermediate · Course · 1 - 3 Months

Coursera
Skills you'll gain: Operations Research, Strategic Decision-Making, Decision Intelligence, Generative AI, Business Analytics, Advanced Analytics, Analytics, Process Optimization, Applied Machine Learning, Predictive Analytics, Artificial Intelligence, Decision Making, Performance Analysis, Model Evaluation
Intermediate · Course · 1 - 4 Weeks

Fundação Instituto de Administração
Skills you'll gain: Big Data, Data Mining, Data-Driven Decision-Making, Data Strategy, FinTech, Data Engineering, Deep Learning, Machine Learning Methods, Predictive Analytics, Analytics, Applied Machine Learning, Data Science, Data Processing, Predictive Modeling, Machine Learning, Digital Transformation, Financial Market, Financial Forecasting, Data Literacy, Business Transformation
Beginner · Specialization · 1 - 3 Months

Skills you'll gain: Active Directory, Network Administration, Dynamic Host Configuration Protocol (DHCP), Technical Support and Services, General Networking, Firewall, Microsoft Windows, Local Area Networks, Lightweight Directory Access Protocols, Network Security, Network Troubleshooting, Computer Networking, Mac OS, Group Policy, Network Infrastructure, TCP/IP, User Accounts, Authorization (Computing), Network Protocols, Multi-Factor Authentication
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Cyber Threat Intelligence, Computer Security Incident Management, Threat Modeling, Zero Trust Network Access, Security Management, DevSecOps, Incident Response, Threat Detection, Identity and Access Management, Application Security, Cybersecurity, Data Security, Microsoft Azure, Cyber Security Strategy, Security Strategy, IT Security Architecture, Cloud Security, Cyber Operations, Network Security
Advanced · Course · 1 - 3 Months

Skills you'll gain: Penetration Testing, Metasploit, Exploitation techniques, Cloud Security, Vulnerability Scanning, Security Testing, Network Security, Application Security, Vulnerability Assessments, Cybersecurity, Mobile Security, Wireless Networks, Human Factors (Security), Network Analysis, Linux, Technical Communication
Advanced · Course · 3 - 6 Months

Board Infinity
Skills you'll gain: Frontend Integration, CI/CD, Jenkins, Docker (Software), Spring Boot, Continuous Integration, Configuration Management, Containerization, Cloud-Native Computing, Scalability, Software Documentation, Application Deployment, Java, API Design, Java Programming, API Gateway, Back-End Web Development, JUnit, Application Programming Interface (API), React.js
Intermediate · Specialization · 1 - 3 Months
University of Illinois Urbana-Champaign
Skills you'll gain: Blockchain, Cryptography, Cryptographic Protocols, FinTech, Organizational Structure, Governance, Emerging Technologies, Web Applications, Transaction Processing, Law, Regulation, and Compliance, Distributed Computing, Digital Assets, Payment Processing, Regulatory Compliance, Ledgers (Accounting), Data Security, Financial Regulation, Case Studies
Build toward a degree
Beginner · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Looker (Software), Customer Retention, Customer Analysis, Customer Insights, Marketing Analytics, Driving engagement, Data-Driven Marketing, Trend Analysis, Data Analysis, Analytics, Performance Metric, Consumer Behaviour, Business Metrics, Time Series Analysis and Forecasting, Forecasting, Business Strategies
Intermediate · Course · 1 - 4 Weeks

University of Maryland, College Park
Skills you'll gain: Data-Driven Marketing, AI Personalization, Data Ethics, Digital Marketing, Marketing Strategies, Customer Engagement, Marketing Analytics, AI Enablement, Content Marketing, Generative AI, Social Media Marketing, Responsible AI, Artificial Intelligence, Digital Transformation, Social Media, Social Media Analytics, Customer Insights, Brand Strategy, Predictive Analytics
Intermediate · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Network Analysis, Unsupervised Learning, Social Network Analysis, Supervised Learning, Applied Machine Learning, Unstructured Data, Statistical Machine Learning, Marketing Analytics, Social Media Analytics, Deep Learning, Scikit Learn (Machine Learning Library), Machine Learning, Tensorflow, Model Training, Machine Learning Algorithms, Text Mining, Data Analysis, Model Evaluation, Scientific Visualization, Statistical Methods
Build toward a degree
Beginner · Specialization · 3 - 6 Months

Johns Hopkins University
Skills you'll gain: Generative Adversarial Networks (GANs), AI Security, Fraud detection, Model Evaluation, Feature Engineering, Cybersecurity, Cyber Security Strategy, Reinforcement Learning, Model Optimization, Data Synthesis
Intermediate · Course · 1 - 3 Months