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.

Google Cloud
Skills you'll gain: Google Gemini, Gemini, Vibe coding, Web Development Tools, Generative AI Agents, Generative AI, Application Development, LLM Application, Google Cloud Platform, Software Development Tools, Cloud Development, Development Environment, Web Development, Web Applications, Secure Coding, Command-Line Interface, Application Security, Debugging
Beginner · Course · 1 - 3 Months
University of Illinois Urbana-Champaign
Skills you'll gain: Generative AI, Generative Model Architectures, Generative Adversarial Networks (GANs), Deep Learning, Responsible AI, Machine Learning Methods, Artificial Intelligence, Data Ethics, Machine Learning, Machine Learning Algorithms, AI literacy, Artificial Neural Networks, Convolutional Neural Networks, Regression Analysis, Law, Regulation, and Compliance, Classification Algorithms, Regulation and Legal Compliance
★ 4.5 (74) · Beginner · Course · 1 - 4 Weeks

Simplilearn
Skills you'll gain: Search Engine Marketing, Google Ads, Search Engine Optimization, Marketing Strategies, Pay Per Click Advertising, Data-Driven Marketing, Web Analytics and SEO, Online Advertising, Digital Marketing Tools, Marketing Effectiveness, Email Marketing, Marketing Analytics, Digital Marketing Campaigns, Digital Marketing, Marketing Planning, Marketing, Digital Advertising, Driving engagement, Strategic Marketing, Social Media Marketing
★ 4.5 (40) · Beginner · Specialization · 1 - 3 Months

Skills you'll gain: Penetration Testing, Open Web Application Security Project (OWASP), Web Applications, Vulnerability Scanning, Exploitation techniques, Vulnerability Assessments, Security Testing, Application Security, Test Tools, Web Servers, Content Management Systems, Application Programming Interface (API), Databases
★ 4.2 (10) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Linux, Linux Administration, Linux Commands, Linux Servers, Shell Script, Unix, Unix Shell, Systems Administration, Unix Commands, Command-Line Interface, Patch Management, Scripting Languages, Package and Software Management, Virtualization and Virtual Machines, File Systems, File Management, Data Storage, Security Controls, User Accounts, Authorization (Computing)
★ 4.7 (11) · Intermediate · Specialization · 3 - 6 Months
STARWEAVER
Skills you'll gain: Threat Detection, Endpoint Security, Hardening, Firewall, Cybersecurity, Cyber Threat Intelligence, Network Security, Cyber Attacks, Cyber Security Strategy, Threat Management, Cyber Operations, Authorization (Computing), Security Controls, Cyber Security Assessment, Network Monitoring, Cyber Risk, Data Security, Identity and Access Management
Beginner · Course · 1 - 4 Weeks

28DIGITAL
Skills you'll gain: General Data Protection Regulation (GDPR), Case Law, Information Privacy, Court Systems, Law, Regulation, and Compliance, European History, Ancient History, Data Security, Regulation and Legal Compliance, Civil Law, Data Sharing
★ 4.4 (98) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: Public Safety and National Security, International Relations, Social Studies, Culture, Diplomacy, Public Policies, Political Sciences, Policy Analysis, Intelligence Collection and Analysis, Diversity Awareness, Intercultural Competence, Policy Development, World History
★ 4.7 (134) · Beginner · Course · 1 - 3 Months

Illinois Tech
Skills you'll gain: Operating System Administration, Microsoft Windows, Operating Systems, System Configuration, Firewall, Linux Administration, Linux, System Monitoring, File Systems, System Support, Event Monitoring, Authorization (Computing), File Management, Network Security, Data Security
★ 4.8 (27) · Intermediate · Course · 1 - 4 Weeks

Digital Marketing Institute
Skills you'll gain: LinkedIn, Content Performance Analysis, Campaign Management, Social Media Campaigns, Social Media Marketing, Online Advertising, Social Media, Digital Advertising, Social Media Content, Marketing, B2B Sales, Social Media Management, Professional Networking, Digital Marketing Campaigns, Advertising Campaigns, Social Media Strategy, Business Marketing, Marketing Analytics, Video Production, Social Media Analytics
★ 4.4 (102) · Beginner · Course · 1 - 4 Weeks
Duke University
Skills you'll gain: Responsible AI, Large Language Modeling, Data Ethics, Decision Tree Learning, Regression Analysis, Generative AI, Artificial Intelligence, AI literacy, Decision Intelligence, Applied Machine Learning, Generative Model Architectures, Statistical Modeling, Python Programming, Machine Learning, Model Evaluation, Embeddings, Image Analysis, Machine Learning Methods, Scientific Visualization, Deep Learning
★ 4.7 (91) · Intermediate · Specialization · 1 - 3 Months

University of Colorado Boulder
Skills you'll gain: Process Capability, Sampling (Statistics), R (Software), Correlation Analysis, Statistical Inference, Probability Distribution, Statistical Visualization, R Programming, Statistical Process Controls, Statistical Hypothesis Testing, Statistical Methods, Probability & Statistics, Data Science, Statistics, Data Analysis, Statistical Analysis, Statistical Software, Descriptive Statistics, Quality Improvement, Process Engineering
★ 4.5 (54) · Intermediate · Specialization · 3 - 6 Months