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

LearnQuest
Skills you'll gain: Blockchain, Threat Modeling, Security Controls, Cybersecurity, Data Security, Network Security, Security Architecture Review, Cryptography, IT Security Architecture, Vulnerability Assessments, Secure Coding, Cryptographic Protocols, Encryption, Transaction Processing, Key Management, Risk Management, Public Key Cryptography Standards (PKCS), Distributed Computing
★ 4.8 (13) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: Security Controls, Security Awareness, Change Control, Computer Security Awareness Training, Cybersecurity, Security Management, Information Assurance, Data Security, Safety and Security, Cyber Security Policies, Enterprise Security, Data Ethics, Human Factors (Security), Cyber Security Assessment, Data Integrity, Authorization (Computing), Identity and Access Management
★ 4.7 (113) · Beginner · Course · 1 - 4 Weeks

Macquarie University
Skills you'll gain: Incident Response, Cyber Governance, Incident Management, Computer Security Incident Management, Safety Culture, Cyber Risk, Security Awareness, Event Monitoring, Cyber Security Strategy, Cyber Attacks, Dashboard, Threat Management, Security Management, Cyber Security Policies, Cyber Threat Intelligence, Mobile Security, Corporate Communications, Cybersecurity, Cyber Security Assessment, Cyber Operations
★ 4.8 (64) · Beginner · Specialization · 3 - 6 Months

Skills you'll gain: SQL, Data Structures
★ 4.3 (7) · Intermediate · Course · 1 - 3 Months
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, Risk Management Framework, Personally Identifiable Information, Linux, Linux Administration, Infrastructure Security, Authorization (Computing), Network Security, Threat Management, Event Monitoring, Role-Based Access Control (RBAC), Security Strategy
★ 4.7 (70) · Beginner · Specialization · 1 - 3 Months

AI CERTs
Skills you'll gain: Threat Modeling, Security Controls, Key Management, Security Management, Cybersecurity, Cyber Attacks, Hardening, Enterprise Security, Cyber Security Assessment
Beginner · Course · 1 - 4 Weeks

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

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

Skills you'll gain: Business Continuity Planning, Continuous Monitoring, Business Continuity, Security Management, ISO/IEC 27001, Security Controls, Threat Management, Risk Management, Law, Regulation, and Compliance, Risk Analysis, Risk Management Framework, Security Strategy, Cyber Risk, Regulation and Legal Compliance, Cyber Governance, Threat Modeling, Governance Risk Management and Compliance, NIST 800-53, Cybersecurity, Compliance Management
★ 4.8 (81) · Beginner · Course · 1 - 4 Weeks

University of London
Skills you'll gain: Linux, Linux Commands, Computer Systems, Command-Line Interface, Cybersecurity, Computer Architecture, Network Security, Cyber Attacks, Vulnerability Assessments, Hardware Architecture, Information Systems Security, Application Security, Threat Detection, Authorization (Computing), Network Protocols, Virtual Private Networks (VPN), Operating Systems, VPN Clients, Systems Architecture, Authentications
★ 4.8 (45) · Beginner · Course · 1 - 4 Weeks

University at Buffalo
Skills you'll gain: Intrusion Detection and Prevention, Security Controls, Continuous Monitoring, Incident Response, Cyber Attacks, Vulnerability Assessments, Software Development Life Cycle, Cybersecurity, Application Security, Computer Security Incident Management, Security Management, Cyber Security Strategy, Information Systems Security, Secure Coding, Cyber Security Policies, Cyber Security Assessment, Threat Management, Threat Detection, Information Assurance, Network Security
★ 4.7 (666) · Beginner · Course · 1 - 4 Weeks