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.

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

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

Skills you'll gain: OSI Models, Network Security, Security Controls, Wireless Networks, Network Protocols, Firewall, Network Administration, TCP/IP, Telecommunications, Proxy Servers, Network Infrastructure, System Configuration, Network Architecture, Intrusion Detection and Prevention
★ 4.5 (37) · Beginner · Course · 1 - 4 Weeks

Packt
Skills you'll gain: Security Testing, Cybersecurity, Network Security, Vulnerability Scanning, Brute-force attacks, Server Side, TCP/IP, Network Monitoring, Vulnerability Assessments, Servers, Network Analysis, Network Protocols, Program Development
Intermediate · Course · 1 - 3 Months

AI CERTs
Skills you'll gain: Blockchain, Cryptography, Cryptographic Protocols, Network Security, Information Systems Security, Cybersecurity, Public Key Cryptography Standards (PKCS), Vulnerability Assessments, Data Validation, Vulnerability Management, Data Integrity, Transaction Processing, Distributed Computing
Beginner · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: AI Security, Penetration Testing, Exploit development, Network Security, Exploitation techniques, Open Web Application Security Project (OWASP), Security Testing, Cyber Security Assessment, Cyber Operations, Computer Security, Cybersecurity, Artificial Intelligence and Machine Learning (AI/ML), Cryptographic Protocols, Network Protocols, Cryptography, Security Awareness, Generative AI Agents, Server Side, Web Applications, Machine Learning Algorithms
★ 4.6 (18) · Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Cyber Security Assessment, Security Testing, Vulnerability Assessments, Penetration Testing, Vulnerability Management, Security Controls
★ 4.9 (9) · Intermediate · 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
★ 4.6 (377) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Linux Servers, Linux Commands, Network Administration, Cryptography, User Accounts, Key Management, Brute-force attacks
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Multi-Factor Authentication, Information Architecture, Security Controls, Vulnerability Scanning, Software Documentation, Authentications, ISO/IEC 27001, Penetration Testing, Vulnerability Assessments, Web Content Accessibility Guidelines, Auditing, Security Information and Event Management (SIEM), Data Security, Audit Planning, Enterprise Security, Single Sign-On (SSO), Security Assertion Markup Language (SAML), Maintainability, End User Training and Support, Control Panels
Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Malware Protection, Endpoint Security, Mobile Security, Cloud Security, Application Security, Infrastructure Security, Cloud Deployment, Cloud Computing, Threat Detection, Cyber Attacks, Endpoint Detection and Response, Cybersecurity, Information Systems Security, Virtualization, Virtualization and Virtual Machines, Virtual Machines, Security Controls, Intrusion Detection and Prevention, Data Security, Human Factors (Security)
★ 4.7 (33) · Beginner · Course · 1 - 4 Weeks

Pragmatic AI Labs
Skills you'll gain: GitHub, Authentications, Identity and Access Management, Authorization (Computing), Role-Based Access Control (RBAC), Application Security, Enterprise Security, User Provisioning, Multi-Factor Authentication, Enterprise Application Management, User Accounts, Security Strategy, Security Engineering, Systems Administration
Beginner · Course · 1 - 4 Weeks