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: Cyber Security Assessment, Cybersecurity, Security Testing, Test Planning
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Network Monitoring, Routing Protocols, Software-Defined Networking, TCP/IP, Network Routing, Open Shortest Path First (OSPF), Dynamic Host Configuration Protocol (DHCP), Network Performance Management, System Monitoring, Network Planning And Design, Disaster Recovery, Computer Networking, Network Architecture, Virtual Local Area Network (VLAN), Network Administration, Network Protocols, Border Gateway Protocol, Document Management, Software Installation
Intermediate · Course · 1 - 3 Months

Microsoft
Skills you'll gain: Microsoft Azure, Threat Modeling, Cloud Security, Continuous Monitoring, System Monitoring, Security Information and Event Management (SIEM), Security Management, Threat Detection, Threat Management, Application Performance Management, Event Monitoring, Vulnerability Management, Brute-force attacks, Incident Response, Query Languages
Intermediate · Course · 1 - 4 Weeks

AI CERTs
Skills you'll gain: Blockchain, Cryptography, Encryption, Network Security, Cybersecurity, Authentications, Public Key Cryptography Standards (PKCS), Vulnerability Assessments, Data Validation, Data Integrity, Transaction Processing, Distributed Computing
Beginner · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Cloud Computing, Cloud Infrastructure, Software-Defined Networking, Wide Area Networks, Network Architecture, Virtualization, Load Balancing, Data Centers, Terraform, Virtual Machines, Hybrid Cloud Computing, Google Cloud Platform, Virtual Private Networks (VPN), Infrastructure as Code (IaC)
Build toward a degree
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Software Testing, Open Web Application Security Project (OWASP), Business Logic, Secure Coding, Cryptography, Cybersecurity, Test Case, Identity and Access Management, Authentications, Vulnerability Assessments, Threat Modeling, Encryption, Data Validation, Network Protocols, Authorization (Computing), Web Applications
Intermediate · Course · 1 - 4 Weeks

University of Michigan
Skills you'll gain: Social Network Analysis, Bayesian Network, Data Analysis, Python Programming, Probability Distribution
Advanced · Course · 1 - 4 Weeks

Skills you'll gain: Threat Modeling, Data Loss Prevention, Mobile Security, DevSecOps, MLOps (Machine Learning Operations), Vulnerability Scanning, Incident Response, LLM Application, Hardening, Application Security, Anomaly Detection, Responsible AI, Security Controls, Data Security, CI/CD, Infrastructure Security, Continuous Monitoring, Penetration Testing, Process Optimization, Vulnerability Assessments
Intermediate · Specialization · 3 - 6 Months

University at Buffalo
Skills you'll gain: Intrusion Detection and Prevention, Security Controls, Continuous Monitoring, Incident Response, Vulnerability Assessments, Software Development Life Cycle, Cybersecurity, Computer Security Incident Management, Cyber Security Policies, Cyber Security Assessment, Information Assurance, Network Security, Risk Management Framework, Cloud Security, Authentications
Beginner · Course · 1 - 4 Weeks

LearnQuest
Skills you'll gain: Continuous Monitoring, Security Management, Security Strategy, Risk Management Framework, Cyber Risk, Threat Management, Cyber Security Strategy, System Monitoring, Cloud Security, Computer Security Incident Management, Security Requirements Analysis, Security Controls, Cyber Security Assessment, Incident Response, Risk Analysis, Cloud Standards, Scalability
Beginner · Course · 1 - 4 Weeks

LearnKartS
Skills you'll gain: Cloud Computing Architecture, Identity and Access Management, Cloud Infrastructure, AWS Identity and Access Management (IAM), Virtual Machines, Cloud Security, Virtualization, Cloud Deployment, Cloud Platforms, Authorization (Computing), Role-Based Access Control (RBAC), Threat Management, Authentications, Zero Trust Network Access, Multi-Factor Authentication, Security Awareness, Cyber Threat Intelligence, Scalability, Cyber Security Strategy
Beginner · Course · 1 - 4 Weeks
Skills you'll gain: Computer Security Incident Management, Endpoint Security, Incident Management, Incident Response, ISO/IEC 27001, Security Management, Vulnerability Scanning, Digital Forensics, Risk Management, Personally Identifiable Information, Linux, Linux Administration, Infrastructure Security, Network Security, Threat Management, Event Monitoring, Enterprise Risk Management (ERM), Business Risk Management, Security Information and Event Management (SIEM), Security Strategy
Beginner · Specialization · 1 - 3 Months