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: Data Security, Personally Identifiable Information, Information Assurance, Security Management, Data Governance, Data Loss Prevention, Data Management, Threat Management, Threat Detection, Encryption, Identity and Access Management
Advanced · Course · 1 - 4 Weeks

University of Colorado System
Skills you'll gain: Cybersecurity, Cyber Security Strategy, Infrastructure Security, Cyber Attacks, Cyber Operations, Cyber Risk, Cyber Security Policies, Cyber Governance, Incident Response, Risk Management Framework, Technology Solutions, Legal Risk
Beginner · Course · 1 - 4 Weeks

AI CERTs
Skills you'll gain: Cyber Threat Intelligence
Advanced · Course · 1 - 3 Months

Alex Genadinik
Skills you'll gain: Data Security, Risk Management Framework, Key Management, Cybersecurity, Encryption, Data Storage, USB, Blockchain, Computer Hardware
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Data Governance, Health Information Management, Cloud Security, Health Care, Data Architecture, Identity and Access Management, Real Time Data, Scalability, Health Care Procedure and Regulation, Medical Records, Data Management, Data Sharing, Clinical Data Management, Microsoft Azure, Role-Based Access Control (RBAC), Regulatory Compliance, Information Privacy, Interoperability, Security Management, Encryption
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Operating System Administration, Cloud Computing, Linux Commands, Linux Administration, Linux Servers, Cloud Security, Operating Systems, Windows PowerShell, Windows Servers, File Systems, System Software, Mac OS, Command-Line Interface, Active Directory, Computer Systems, Virtual Machines, Firewall, Virtualization, Containerization, User Accounts
Beginner · Course · 1 - 3 Months

Cisco Learning and Certifications
Beginner · Course · 1 - 3 Months

Macquarie University
Skills you'll gain: Cyber Security Strategy, Cyber Threat Intelligence, Intrusion Detection and Prevention, Cybersecurity, Artificial Intelligence and Machine Learning (AI/ML), Threat Modeling, Machine Learning Methods
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Mac OS, Network Security, Threat Management, Endpoint Security, Threat Detection, Computer Security Awareness Training, Security Strategy, Information Systems Security, Security Controls, Network Protocols, Automation
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Linux Commands, Linux, TCP/IP, Scripting, Shell Script, Network Monitoring, Network Analysis, Network Security, Network Protocols
Intermediate · Guided Project · Less Than 2 Hours
Skills you'll gain: Application Security, OAuth, Data Validation, Authentications, Security Testing, Secure Coding, Web Applications, Authorization (Computing), Vulnerability Scanning, Cyber Attacks, Distributed Denial-Of-Service (DDoS) Attacks, Server Side, Security Strategy
Intermediate · Course · 1 - 4 Weeks

LearnKartS
Skills you'll gain: Cloud Security, Open Web Application Security Project (OWASP), Data Governance, Data Management, Data Security, Secure Coding, Application Security, DevSecOps, Cloud Applications, Key Management, Encryption, Personally Identifiable Information, Information Privacy, OAuth, Cloud Storage, API Gateway, Threat Modeling, Data Encryption Standard, Risk Management Framework
Beginner · Course · 1 - 4 Weeks