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.

Coursera
Skills you'll gain: AI Orchestration, AI Workflows, Agentic Workflows, Agentic systems, Collaborative Software, System Design and Implementation, Interoperability, Coordination, Communication Systems, Network Protocols, Workflow Management, Case Studies, Scalability
Mixed · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: AI Security, Test Driven Development (TDD), Vulnerability Assessments, Unit Testing, Code Coverage, Vulnerability Scanning, Continuous Integration, Dependency Analysis, Secure Coding, CI/CD, Software Testing, Test Automation, Integration Testing, Continuous Deployment, Software Versioning, Large Language Modeling
Intermediate · Course · 1 - 4 Weeks

Google Cloud
Skills you'll gain: Identity and Access Management, Google Cloud Platform, Cloud Infrastructure, Infrastructure As A Service (IaaS), Cloud Computing, Cloud Services, Data Storage Technologies, Cloud Security, Databases, System Monitoring
Intermediate · Course · 1 - 3 Months

DeepLearning.AI
Skills you'll gain: Computer Vision, Tensorflow, Image Analysis, Transfer Learning, Convolutional Neural Networks, Keras (Neural Network Library), Deep Learning, Classification Algorithms, Model Evaluation, Visualization (Computer Graphics), Network Architecture
Intermediate · Course · 1 - 4 Weeks

University of Colorado System
Skills you'll gain: Data Encryption Standard, Public Key Infrastructure, Cryptography, Public Key Cryptography Standards (PKCS), Brute-force attacks, Key Management, Advanced Encryption Standard (AES), Encryption, Data Integrity, Information Systems Security, Cybersecurity, Authentications, Information Assurance, Data Security, Theoretical Computer Science, Computational Logic, Algorithms
Intermediate · Specialization · 3 - 6 Months

Microsoft
Skills you'll gain: Microsoft Azure, Cloud Security, Data Security, Network Security, Cloud Applications, Authorization (Computing), Role-Based Access Control (RBAC), Application Security, Microsoft SQL Servers, Web Applications, Database Application, Cloud Development, Azure Active Directory, Firewall, Relational Databases, Cloud Management, Key Management, Threat Detection, Authentications, Encryption
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Disaster Recovery, Server Administration, Windows Servers, Servers, Network Troubleshooting, Linux Servers, Virtualization, Hardware Troubleshooting, Operating System Administration, Virtual Machines, IT Automation, Remote Access Systems, Security Controls, Networking Hardware, System Support, Computer Hardware, Data Storage, Data Security
Intermediate · Course · 1 - 4 Weeks

University of Illinois Urbana-Champaign
Skills you'll gain: Cloud Infrastructure, Network Architecture, Computer Networking, Cloud Computing Architecture, Software-Defined Networking, Cloud Computing, Network Routing, TCP/IP, Wide Area Networks, Data Centers, Network Performance Management, Network Switches, Virtual Machines, Scalability, Python Programming
Mixed · Course · 1 - 3 Months

Infosec
Skills you'll gain: Network Analysis, Network Security, Intrusion Detection and Prevention, Cybersecurity, Threat Detection, Network Monitoring, Anomaly Detection
Mixed · Course · 1 - 4 Weeks

Edureka
Skills you'll gain: Data Analysis Expressions (DAX), Power BI, Dashboard, Business Intelligence, Data Modeling, Data Storytelling, Extract, Transform, Load, Data Transformation, Data Visualization, Snowflake Schema, Business Analytics, Data Lakes, Data-Driven Decision-Making, Key Performance Indicators (KPIs), Data Analysis, Data Governance, Python Programming, Generative AI, Artificial Intelligence, Data Security
Intermediate · Specialization · 1 - 3 Months

Skills you'll gain: Data Ethics, Business Ethics, Responsible AI, Ethical Standards And Conduct, Sustainable Development, Law, Regulation, and Compliance, Data Security, Medical Privacy, Information Privacy, Artificial Intelligence and Machine Learning (AI/ML), Decision Making, Business Leadership, Artificial Intelligence, Accountability, Business Strategy, Safety and Security, Emerging Technologies, Human Centered Design
Mixed · Course · 1 - 3 Months

University at Buffalo
Skills you'll gain: Model Based Systems Engineering, Peer Review, Programmable Logic Controllers, Systems Engineering, Product Lifecycle Management, Intrusion Detection and Prevention, Security Controls, Performance Measurement, Collaborative Software, Control Systems, Continuous Monitoring, Anomaly Detection, Machine Controls, Incident Response, Digital Transformation, Vulnerability Assessments, Software Development Life Cycle, Production Process, Cybersecurity, Manufacturing Operations
Beginner · Specialization · 3 - 6 Months