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.

University of Maryland, College Park
Skills you'll gain: Usability, Human Computer Interaction, Authentications, Security Engineering, Usability Testing, Interaction Design, Human Factors, Information Privacy, Cybersecurity, Personally Identifiable Information, User Interface (UI) Design, Multi-Factor Authentication, User Centered Design, Design
Mixed · Course · 1 - 3 Months

Infosec
Skills you'll gain: Authentications, Application Security, Open Web Application Security Project (OWASP), Secure Coding, Serverless Computing, Cryptography, Risk Management Framework, Threat Modeling, Cloud Security, Infrastructure Security, Package and Software Management, Node.JS, Web Applications, Javascript, Vulnerability Management, Cloud Services, Cloud Platforms, Web Development, Identity and Access Management, Security Controls
Intermediate · Specialization · 1 - 3 Months

Skills you'll gain: Cybersecurity, Cyber Attacks, Data Security, Computer Security Awareness Training, Authentications, Authorization (Computing), Application Security, Security Controls, Personally Identifiable Information, Security Awareness, Identity and Access Management, Information Privacy, Cryptography, Malware Protection, Hardening, Encryption, Vulnerability Assessments, Multi-Factor Authentication, Data Integrity
Beginner · Course · 1 - 4 Weeks

Google Cloud
Skills you'll gain: Network Performance Management, Network Monitoring, Performance Tuning, Virtual Networking, Google Cloud Platform, Performance Testing, Network Analysis, Hardware Architecture, Intranet
Intermediate · Project · Less Than 2 Hours

Skills you'll gain: Digital Forensics, Cyber Threat Hunting, Incident Response, Cyber Threat Intelligence, Penetration Testing, Computer Security Incident Management, Threat Modeling, Threat Detection, MITRE ATT&CK Framework, Cryptography, Security Testing, Incident Management, Application Security, Encryption, Cybersecurity, Security Management, Vulnerability Scanning, Cyber Security Assessment, Vulnerability Assessments, AI Security
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Application Security, Infrastructure Security, Data Security, Information Systems Security, Internet Of Things, Threat Modeling, Cybersecurity, Cloud Security, Security Engineering, Cryptography, Secure Coding, Network Security, Cyber Risk, Cyber Attacks, Mobile Security, Vulnerability, Vulnerability Scanning, Cloud Services, Web Applications, Cloud Platforms
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Infrastructure Security, Vulnerability Management, Vulnerability Assessments, Incident Response, Cyber Threat Intelligence, Cybersecurity, Cyber Security Assessment, Distributed Denial-Of-Service (DDoS) Attacks, Cyber Security Strategy, Cyber Attacks, Cyber Threat Hunting, Network Security, Cyber Security Policies, Intrusion Detection and Prevention, Threat Detection, Malware Protection, Internet Of Things
Intermediate · Course · 1 - 3 Months

Packt
Skills you'll gain: Data Security, Data Loss Prevention, Security Management, Data Management, Security Controls, Personally Identifiable Information, Information Systems Security, Data Governance, Information Management, Encryption, Identity and Access Management
Intermediate · Course · 1 - 4 Weeks

University of Pennsylvania
Skills you'll gain: Social Network Analysis, Network Analysis, Social Sciences, Sociology, Systems Thinking, Economics, Policy, and Social Studies, Simulations, Culture, Graph Theory, Complex Problem Solving, Innovation
Beginner · Course · 1 - 3 Months

Packt
Skills you'll gain: Computer Security Incident Management, Incident Response, Disaster Recovery, Incident Management, Security Management, Business Continuity Planning, Safety and Security, Change Control, Security Information and Event Management (SIEM), Patch Management, Security Controls, Cybersecurity, Threat Detection, Intrusion Detection and Prevention, Hardening, Configuration Management, Continuous Monitoring, Vulnerability Management, Digital Forensics
Intermediate · Course · 1 - 4 Weeks

Cisco Learning and Certifications
Skills you'll gain: Postman API Platform, Restful API, Authentications, Application Programming Interface (API), Scripting, JSON, Extensible Markup Language (XML), Network Protocols, YAML, Automation, Network Engineering, Python Programming
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Social Media Content, Social Media, Presentations, Social Media Marketing, Content Creation, Instagram, Facebook, Content Marketing, LinkedIn, Digital Marketing, Graphic Design
Beginner · Guided Project · Less Than 2 Hours