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.

Infosec
Skills you'll gain: Application Security, Secure Coding, Security Software, Vulnerability Scanning, Security Controls, Intrusion Detection and Prevention, Security Awareness, Web Applications, PHP (Scripting Language), Application Frameworks, Browser Compatibility, Computer Programming
★ 5 (7) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Scope Management, Project Scoping, Work Breakdown Structure, Project Schedules, Requirements Management, Project Management, Project Controls, Timelines, Change Control, Scheduling, Project Management Institute (PMI) Methodology, Project Planning, Dependency Analysis, Process Flow Diagrams, Workflow Management, Product Requirements, Requirements Elicitation, Requirements Analysis
Mixed · Course · 1 - 4 Weeks

LearnQuest
Skills you'll gain: Event Monitoring, Security Strategy, General Networking, Network Architecture, Systems Integration, Incident Response, Data Integration, Threat Management, Cybersecurity, Security Management, Networking Hardware, Information Technology, Computer Networking, Network Security, Threat Detection, Cyber Security Policies, Data Governance, Data Management, Command-Line Interface, Application Deployment
Beginner · Specialization · 1 - 3 Months

University of Minnesota
Skills you'll gain: Open Web Application Security Project (OWASP), Cloud Security, Authentications, Key Management, Cloud Applications, Application Security, Cloud Development, Secure Coding, DevSecOps, Cloud Computing, Cloud Services, Identity and Access Management, Multi-Factor Authentication, Data Security, Cryptography, Cryptographic Protocols, Application Programming Interface (API), Web Servers, Transaction Processing, Server Side
★ 4.3 (27) · Intermediate · Course · 1 - 4 Weeks

Google Cloud
Skills you'll gain: Apache, Event Monitoring, Network Monitoring, Data Import/Export, Web Servers, Virtual Networking, Servers, Network Analysis
Intermediate · Project · Less Than 2 Hours

Skills you'll gain: LinkedIn, Professional Networking, Web Presence, Relationship Building, Professional Development, General Networking, Professionalism
★ 4.6 (895) · Beginner · Guided Project · Less Than 2 Hours

University of Colorado System
Skills you'll gain: Cybersecurity, Cyber Security Strategy, Risk Management Framework, Infrastructure Security, Cyber Attacks, Cyber Risk, Cyber Security Policies, Public Safety and National Security, Cyber Security Assessment, Cyber Operations, Security Management, Cyber Governance, Continuous Monitoring, Incident Response, Technology Roadmaps, Cyber Threat Intelligence, Network Infrastructure, Technology Solutions, Transportation Operations, Computer Security
★ 4.7 (634) · Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Email Security, Cybersecurity, Hardening, Authorization (Computing), Cyber Attacks, Security Awareness, Security Controls, Threat Management, Encryption, Data Security, Identity and Access Management, Authentications, Application Security, Endpoint Security, Threat Detection, Cryptography, Malware Protection, Patch Management, Multi-Factor Authentication
★ 4.9 (2K) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Social Media Marketing, Social Media, Social Media Strategy, Social Media Analytics, Marketing Strategies, Marketing, LinkedIn, Digital Marketing, Facebook, Customer Engagement, Customer Analysis, Marketing Communications, Consumer Behaviour, Global Marketing, Brand Awareness
Mixed · Course · 1 - 4 Weeks

University of Colorado System
Skills you'll gain: Role-Based Access Control (RBAC), Authorization (Computing), Identity and Access Management, AWS Identity and Access Management (IAM), Security Controls, Geographic Information Systems, Geospatial Information and Technology, Encryption, Data Security, Network Security, Public Key Infrastructure, Cryptography, Web Applications, Wireless Networks
★ 4.6 (377) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Software Testing, Business Logic, Test Tools, Cryptography, Cybersecurity, Identity and Access Management, Authentications, Vulnerability Assessments, Encryption, Data Validation, Network Protocols
Intermediate · Course · 1 - 4 Weeks

LearnQuest
Skills you'll gain: Blockchain, Key Management, Public Key Infrastructure, Cryptography, Application Security, Encryption, Secure Coding, Public Key Cryptography Standards (PKCS), Security Testing, Vulnerability Management, Solution Design, Cyber Governance, Vulnerability Assessments, Code Review, Authorization (Computing), Data Integrity
★ 4.5 (11) · Intermediate · Course · 1 - 3 Months