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.

Coursera
Skills you'll gain: Security Controls, Multi-Factor Authentication, Security Management, Authorization (Computing), User Accounts, Content Management Systems, User Provisioning, Identity and Access Management, Data Security, Authentications, Data Management, Data Access, IT Security Architecture, Encryption
Intermediate · Course · 3 - 6 Months

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
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: OSI Models, Network Security, Security Controls, General Networking, Wireless Networks, Network Protocols, Firewall, Network Administration, TCP/IP, Telecommunications, Proxy Servers, Distributed Denial-Of-Service (DDoS) Attacks, Network Infrastructure, System Configuration, Network Architecture, Intrusion Detection and Prevention, Hardening, Remote Access Systems, Authentications
Beginner · Course · 1 - 4 Weeks

University of California, Irvine
Skills you'll gain: digital literacy, Systems Design, Systems Development, Data Security, System Design and Implementation, Data Ethics, Cybersecurity, Information Technology, Information Privacy
Beginner · Course · 1 - 4 Weeks

University of Colorado System
Skills you'll gain: Role-Based Access Control (RBAC), Authorization (Computing), Identity and Access Management, AWS Identity and Access Management (IAM), Security Controls, Geographic Information Systems, Geospatial Information and Technology, Encryption, Data Security, Network Security, Public Key Infrastructure, Cryptography, Web Applications, Wireless Networks
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Amazon S3, Cloud Security, Data Security, Cloud Storage, AWS Identity and Access Management (IAM), Encryption, Key Management, Security Controls, Data Storage Technologies, Data Storage, Authorization (Computing), Cryptography, Identity and Access Management, Cryptographic Protocols, Public Key Infrastructure, Data Sharing, Data Access, Disaster Recovery, Record Keeping
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: IT Security Architecture, Security Controls, Cryptography, Security Engineering, Application Security, Vulnerability Assessments, Information Systems Security, Cryptographic Protocols, Encryption, Cybersecurity, Infrastructure Security, Computer Security, Threat Modeling, Network Security, Public Key Infrastructure, Key Management, Authentications, Data Integrity
Intermediate · Course · 1 - 4 Weeks
Skills you'll gain: Vulnerability Scanning, Digital Forensics, Linux, Linux Administration, Network Security, Authorization (Computing), Role-Based Access Control (RBAC), Identity and Access Management, Linux Commands, Network Monitoring, System Monitoring, Hardening, Information Systems Security, Security Controls, Wireless Networks, Penetration Testing, Cybersecurity, Containerization, File Management, Incident Response
Beginner · Course · 1 - 4 Weeks

Royal Holloway, University of London
Skills you'll gain: Cyber Governance, Incident Management, Incident Response, Security Management, Human Factors (Security), Security Awareness, Cybersecurity, Computer Security Awareness Training, Cyber Risk
Beginner · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Security Controls, Vulnerability Scanning, ISO/IEC 27001, Penetration Testing, Vulnerability Assessments, Security Information and Event Management (SIEM), Data Security, Compliance Auditing, Security Assertion Markup Language (SAML), Computer Security Incident Management, Multi-Factor Authentication, Authentications, Computer Security Awareness Training, Single Sign-On (SSO), Event Monitoring, Authorization (Computing), Encryption, Cryptographic Protocols, Advanced Encryption Standard (AES), End User Training and Support
Intermediate · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: AI Security, Threat Modeling, Open Web Application Security Project (OWASP), Security Testing, Retrieval-Augmented Generation, Software Architecture, API Design, Test Automation, Vulnerability Management, Agentic systems, Systems Design, Model Evaluation, Test Driven Development (TDD), CI/CD, Python Programming, Continuous Deployment, Dependency Analysis, Large Language Modeling, Machine Learning, Performance Analysis
Intermediate · Specialization · 3 - 6 Months

University of California, Irvine
Skills you'll gain: Vendor Management, Vendor Relationship Management, Supplier Risk Management, Security Management, Supplier Management, Risk Analysis, Security Awareness, Cyber Security Strategy, Risk Management, Threat Management, Risk Mitigation, Computer Security Awareness Training, Security Controls, Human Factors (Security), Asset Protection, Cyber Risk, Cybersecurity, Mergers & Acquisitions, Due Diligence
Mixed · Course · 1 - 4 Weeks