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.

Illinois Tech
Skills you'll gain: Cybersecurity, Cyber Attacks, Network Security, Information Systems Security, Business Continuity Planning, Cryptography, Security Architecture Review, Disaster Recovery, Business Continuity, Cyber Security Policies, Cryptographic Protocols, IT Security Architecture, Telecommunications, Network Administration, Law, Regulation, and Compliance, NIST 800-53, Infrastructure Security, Security Controls, Data Security, Governance Risk Management and Compliance
★ 4.4 (25) · Intermediate · Course · 1 - 3 Months

John Wiley & Sons
Skills you'll gain: Cybersecurity, Security Awareness, Computer Security Awareness Training, Cyber Attacks, Cyber Risk, Cyber Security Strategy, Information Systems Security, Security Management, Security Controls, Data Security, Computer Security, Risk Mitigation, Security Strategy, Incident Response, Risk Management, Vulnerability Management, Malware Protection, Encryption, Authorization (Computing), Authentications
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Cryptography, Encryption, Cybersecurity, Identity and Access Management, OSI Models, Network Security, IT Security Architecture, Information Systems Security, Security Controls, Network Infrastructure, Computer Security, Data Encryption Standard, Infrastructure Security, Security Architecture Review, TCP/IP, Cryptographic Protocols, General Networking, Advanced Encryption Standard (AES), User Provisioning, Cyber Threat Intelligence
Intermediate · Course · 1 - 3 Months

John Wiley & Sons
Skills you'll gain: Security Testing, Cyber Security Assessment, Email Security, Application Security, Secure Coding, Penetration Testing, Hardening, Vulnerability Assessments, Vulnerability Scanning, Data Security, Cybersecurity, Network Security, Security Controls, Metasploit, Information Systems Security, Infrastructure Security, Data Storage, Vulnerability Management, Mobile Security, Computer Networking
Beginner · Course · 1 - 3 Months

Skills you'll gain: Metasploit, Penetration Testing, Open Web Application Security Project (OWASP), Cyber Security Assessment, Bash (Scripting Language), Vulnerability Scanning, Exploitation techniques, Command-Line Interface, Security Testing, Linux, Linux Commands, Vulnerability Assessments, Network Security, Unix Commands, Operating System Administration, Cybersecurity, Brute-force attacks, Scripting, Shell Script, Unix Shell
Intermediate · Course · 1 - 4 Weeks
Skills you'll gain: Hardening, Distributed Denial-Of-Service (DDoS) Attacks, Incident Response, Network Architecture, Network Security, Intrusion Detection and Prevention, Incident Management, Network Protocols, Threat Detection, Event Monitoring, Threat Management, Security Information and Event Management (SIEM), Network Monitoring, Network Infrastructure, Cyber Attacks, Computer Security Incident Management, Operating Systems, Linux, Bash (Scripting Language), Databases
★ 4.8 (128) · Beginner · Specialization · 3 - 6 Months

Microsoft
Skills you'll gain: Virtual Private Networks (VPN), Cybersecurity, Security Controls, Computing Platforms, Multi-Factor Authentication, Authentications, Information Systems Security, Cyber Security Policies, Network Security, Application Security, Data Security, Information Privacy, Cloud Computing Architecture, Servers, Server Side, Cloud Computing, Network Performance Management, Remote Access Systems, Network Administration, Encryption
★ 4.9 (150) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Network Security, Dynamic Host Configuration Protocol (DHCP), General Networking, Network Infrastructure, Network Administration, Computer Networking, Endpoint Security, Endpoint Detection and Response, Network Planning And Design, Network Architecture, OSI Models, Network Protocols, Event Monitoring, TCP/IP, Data Loss Prevention, Network Monitoring, Network Troubleshooting, Networking Hardware, Cybersecurity, Firewall
★ 4.7 (3.5K) · Intermediate · Course · 1 - 3 Months

LearnQuest
Skills you'll gain: Incident Response, Cyber Threat Hunting, Computer Security Incident Management, Incident Management, Intrusion Detection and Prevention, Cyber Threat Intelligence, Continuous Monitoring, Threat Detection, Cyber Security Strategy, Security Strategy, Cloud Security, Disaster Recovery, Threat Management, Firewall, Network Security, Cybersecurity, Cloud Services, AI Security, Network Monitoring, Cloud Management
★ 4.4 (98) · Advanced · Specialization · 1 - 3 Months
Skills you'll gain: Network Security, Hardening, Network Protocols, Cloud Security, Network Architecture, Intrusion Detection and Prevention, TCP/IP, Vulnerability Assessments, Computer Networking, Cybersecurity, General Networking, Network Model, Network Infrastructure, Firewall, Security Controls, Cloud Computing, Virtual Private Networks (VPN)
★ 4.8 (7.4K) · Beginner · Course · 1 - 4 Weeks
Skills you'll gain: IT Security Architecture, Information Systems Security, Network Security, Application Security, Security Controls, Cybersecurity, Security Awareness, Cyber Attacks, Encryption, Data Security, Cryptography, Security Strategy, Security Management, Computer Security Awareness Training, Cyber Security Policies, Authorization (Computing), Threat Management, Firewall, Authentications, Identity and Access Management
★ 4.8 (26K) · Beginner · Course · 1 - 3 Months

Cisco Learning and Certifications
Skills you'll gain: Network Security, Vulnerability Assessments, Infrastructure Security, Network Infrastructure, Threat Modeling, Network Monitoring, Distributed Denial-Of-Service (DDoS) Attacks, IT Security Architecture, Firewall, Authorization (Computing), Cybersecurity, Role-Based Access Control (RBAC), TCP/IP, Network Protocols, Identity and Access Management, Security Controls, Malware Protection, Network Model, Exploitation techniques, Enterprise Security
★ 4.8 (741) · Mixed · Course · 1 - 4 Weeks