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: Penetration Testing, Cybersecurity, Metasploit, Cyber Attacks, Exploit development, Application Security, Security Testing, Exploitation techniques, Vulnerability Scanning, Security Awareness, Vulnerability Assessments, Human Factors (Security), Hardening
Intermediate · Course · 1 - 3 Months

LearnKartS
Skills you'll gain: Cybersecurity, Network Security, Cyber Attacks, Penetration Testing, Cyber Security Assessment, Application Security, Cyber Security Strategy, Cyber Threat Intelligence, Vulnerability Scanning, Security Controls, Network Monitoring, Data Security, Cyber Risk
★ 4.7 (50) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Information Systems Security, Risk Management, Security Management, Continuous Monitoring, Information Assurance, Law, Regulation, and Compliance, Cyber Governance, Governance, Regulation and Legal Compliance, Cybersecurity, Security Controls, Risk Mitigation, Cyber Security Policies, Business Risk Management, Risk Management Framework, ISO/IEC 27001, Risk Control, Risk Analysis, Threat Management, Information Systems
★ 4.7 (53) · Advanced · Course · 1 - 4 Weeks

Skills you'll gain: Malware Protection, Cyber Attacks, Cybersecurity, Network Security, Security Software, Cyber Security Policies, Cyber Security Strategy, Brute-force attacks, Distributed Denial-Of-Service (DDoS) Attacks, Security Awareness, Firewall, Exploitation techniques, AI Security, Information Assurance, Multi-Factor Authentication, Encryption, Network Protocols
Beginner · Course · 1 - 3 Months

New York University
Skills you'll gain: Authentications, Public Key Infrastructure, Cryptographic Protocols, Public Key Cryptography Standards (PKCS), Cryptography, Data Encryption Standard, Computer Security, Cybersecurity, Network Security, Security Controls, Cyber Attacks, Encryption, Key Management, Multi-Factor Authentication, Single Sign-On (SSO)
★ 4.7 (710) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Distributed Denial-Of-Service (DDoS) Attacks, Metasploit, Penetration Testing, Exploitation techniques, Cyber Operations, Brute-force attacks, Intrusion Detection and Prevention, Network Security, Dynamic Host Configuration Protocol (DHCP), Network Routing, Remote Access Systems, Network Protocols, Command-Line Interface, Network Analysis, Data Persistence
★ 4.7 (15) · Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Penetration Testing, Cyber Security Assessment, Security Testing, Exploitation techniques, Hardening, Vulnerability Assessments, Intrusion Detection and Prevention, Brute-force attacks, Application Security, Network Security, Virtual Local Area Network (VLAN), Business Logic, Cloud Security, API Testing, Wireless Networks, Data Persistence, Application Programming Interface (API)
Advanced · Course · 1 - 4 Weeks

LearnKartS
Skills you'll gain: Security Controls, Cybersecurity, Encryption, Cyber Attacks, Information Systems Security, Cryptographic Protocols, Threat Management, Vulnerability Assessments, Vulnerability, Cyber Security Assessment, Vulnerability Scanning, Threat Detection, Cloud Security, Key Management, Asset Protection, Security Awareness, Gap Analysis
★ 4.6 (33) · Beginner · Course · 1 - 4 Weeks

Institut Mines-Télécom
Skills you'll gain: Cyber Risk, Threat Management, Cybersecurity, Cyber Attacks, Application Security, Security Testing, Vulnerability Assessments, Exploitation techniques, Penetration Testing, Secure Coding, SQL, Data Validation
Intermediate · Course · 1 - 3 Months

University of California, Davis
Skills you'll gain: Threat Modeling, Secure Coding, Cryptography, Encryption, Application Security, Penetration Testing, Vulnerability Assessments, Data Security, Exploitation techniques, Security Controls, Authentications, Data Validation
★ 4.7 (178) · Intermediate · Course · 1 - 4 Weeks

University of Colorado System
Skills you'll gain: Infrastructure Security, Cyber Risk, Cyber Security Policies, Cyber Security Assessment, Cybersecurity, Security Management, Cyber Security Strategy, Risk Management Framework, Technology Roadmaps, Network Infrastructure, Transportation Operations, Mobile Security
★ 4.7 (259) · Beginner · Course · 1 - 4 Weeks

New York University
Skills you'll gain: Network Security, Firewall, IT Security Architecture, Distributed Denial-Of-Service (DDoS) Attacks, Network Architecture, Intrusion Detection and Prevention, TCP/IP, Cybersecurity, Threat Detection, Cyber Threat Intelligence, Cyber Attacks, Security Controls, Enterprise Security, Network Protocols, Proxy Servers
★ 4.7 (661) · Intermediate · Course · 1 - 4 Weeks