Internet Security courses can help you learn about network security protocols, encryption techniques, and threat detection methods. You can build skills in risk assessment, incident response, and implementing security policies. Many courses introduce tools like firewalls, intrusion detection systems, and antivirus software, demonstrating how these tools are used to protect sensitive data and maintain system integrity.

Yonsei University
Skills you'll gain: TCP/IP, Network Protocols, Open Shortest Path First (OSPF), Network Routing, Cybersecurity, Network Security, General Networking, Intrusion Detection and Prevention, File Transfer Protocol (FTP), Dynamic Host Configuration Protocol (DHCP), Network Architecture, System Configuration, Network Analysis
Beginner · Course · 1 - 3 Months

Coursera
Skills you'll gain: Collaborative Software, Google Docs, Document Management, Data Sharing, File Management, Shared Media, Google Workspace, Project Documentation, Cross-Functional Collaboration, Verification And Validation, Role-Based Access Control (RBAC), Microsoft 365, Security Awareness
Beginner · Course · 1 - 4 Weeks

University of Colorado System
Skills you'll gain: Intrusion Detection and Prevention, Threat Detection, Open Web Application Security Project (OWASP), Incident Response, Penetration Testing, Computer Security Incident Management, Metasploit, Distributed Denial-Of-Service (DDoS) Attacks, Cybersecurity, Threat Management, Data Security, Authentications, Cyber Attacks, Security Testing, Cloud Security, Security Strategy, Computer Security Awareness Training, Risk Management, Security Awareness, Enterprise Security
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Authentications, OAuth, Android Development, Application Security, Mobile Security, Secure Coding, Authorization (Computing), Security Engineering, Security Controls, Multi-Factor Authentication, Human Factors (Security), Vulnerability Management, Malware Protection, Threat Management, Data Integrity, Risk Management, Debugging, Encryption
Mixed · Course · 1 - 4 Weeks
Starweaver
Skills you'll gain: Cyber Threat Intelligence, Intelligence Collection and Analysis, Cyber Threat Hunting, MITRE ATT&CK Framework, Threat Modeling, Threat Detection, AI Security, Malware Protection, Cyber Security Assessment, Cybersecurity, Artificial Intelligence, Network Analysis, Requirements Analysis, Technical Communication, Data Quality
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: System Configuration, Linux, Network Routers, Information Systems Security, Performance Tuning, Mac OS, Information Technology, Email Security, System Support, Android (Operating System), Data Maintenance, Network Security, File Systems, Multi-Factor Authentication, Scripting, Virtualization and Virtual Machines, Apple iOS, Hardware Troubleshooting, Artificial Intelligence, Authentications
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: AI Security, Responsible AI, Generative AI, Prompt Engineering, Data Ethics, Cyber Threat Intelligence, Cyber Security Strategy, Cybersecurity, LLM Application, Large Language Modeling, Compliance Training, Governance, Cyber Threat Hunting, Cyber Security Policies, Cyber Attacks, Cyber Risk, Artificial Intelligence and Machine Learning (AI/ML), Security Awareness, Machine Learning, Automation
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Incident Response, Digital Forensics, Distributed Denial-Of-Service (DDoS) Attacks, Security Information and Event Management (SIEM), Computer Security Incident Management, Incident Management, Endpoint Detection and Response, Continuous Monitoring, Event Monitoring, System Monitoring, Intrusion Detection and Prevention, Cyber Threat Intelligence, Cyber Threat Hunting, Anomaly Detection, Cybersecurity, Cyber Security Strategy, Threat Detection, Malware Protection, Cyber Attacks, Cyber Engineering
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Peripheral Devices, Network Troubleshooting, Desktop Support, Computer Displays, USB, Wireless Networks, Network Administration, Virtual Machines, TCP/IP, Virtualization, Virtual Local Area Network (VLAN), Network Security, Operating System Administration, Cloud Computing, Computer Networking, Hardware Troubleshooting, Virtual Private Networks (VPN), Mobile Security, Mac OS, Microsoft Windows
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Digital Forensics, Penetration Testing, Network Security, Threat Management, Mobile Security, Distributed Denial-Of-Service (DDoS) Attacks, Cloud Security, Public Key Infrastructure, Vulnerability Assessments, Cryptography, Security Controls, Vulnerability Scanning, Cybersecurity, Authorization (Computing), Information Systems Security, Malware Protection, Authentications, Cyber Attacks, Threat Detection, Data Integrity
Beginner · Specialization · 3 - 6 Months

University at Buffalo
Skills you'll gain: Blockchain, Test Driven Development (TDD), Cryptography, Development Testing, Application Development, Transaction Processing, Emerging Technologies, Integrated Development Environments, Software Architecture, Network Protocols, Encryption, Web Applications, Program Development, Distributed Computing, Application Programming Interface (API), Microsoft Azure, FinTech, Development Environment, Web Language, Web Development Tools
Intermediate · Specialization · 3 - 6 Months

Packt
Skills you'll gain: Secure Coding, API Testing, Application Programming Interface (API), Security Testing, Open Web Application Security Project (OWASP), Penetration Testing, Application Security, Restful API, Authentications, Personally Identifiable Information, Brute-force attacks, Security Engineering, Threat Modeling, Distributed Denial-Of-Service (DDoS) Attacks, Vulnerability Assessments, Exploitation techniques, Data Security, Business Logic, Authorization (Computing), Cybersecurity
Intermediate · Course · 1 - 3 Months