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.

University of Colorado System
Skills you'll gain: Data Encryption Standard, Advanced Encryption Standard (AES), Cryptography, Encryption, Key Management, Brute-force attacks, Algorithms
★ 4.6 (285) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: Computer Security Incident Management, Incident Management, Security Management, Digital Forensics, Security Controls, NIST 800-53, Disaster Recovery, Authorization (Computing), Continuous Monitoring, Change Control, Cybersecurity, Threat Management, Security Architecture Review, Event Monitoring, Risk Management, System Monitoring, Cyber Risk, Cyber Security Policies, Vulnerability Assessments, Configuration Management
★ 4.7 (50) · Intermediate · Specialization · 3 - 6 Months

Infosec
Skills you'll gain: File Systems, Digital Forensics, Microsoft Windows, File Management, Operating Systems, Data Structures, Data Validation, Data Storage Technologies, Data Storage, Computer Hardware, Digital Analysis
★ 4.7 (89) · Intermediate · Course · 1 - 3 Months

Johns Hopkins University
Skills you'll gain: Nutrition and Diet, Food and Beverage, Sustainable Systems, Public Health, Community Health, Social Justice, Sustainable Development, Community Development, Health Equity, Systems Thinking, Land Management, Environment, Environmental Issue, Environment and Resource Management, Health Policy, Public Policies, Health Promotion, Manufacturing and Production, Advocacy, Economics
★ 4.7 (165) · Beginner · Course · 1 - 3 Months

Skills you'll gain: Cyber Security Assessment, Cybersecurity, Scenario Testing, Simulations, Infrastructure Security, Computer Security Incident Management, Incident Response, Security Controls, Network Security, Role-Based Access Control (RBAC), Risk Management Framework, Disaster Recovery, Encryption
★ 4.6 (48) · Intermediate · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Agile Methodology, Scrum (Software Development), Embedded Software, Agile Software Development, Embedded Systems, Software Testing, Development Testing, Software Development Methodologies, Agile Project Management, Git (Version Control System), Docker (Software), Containerization, Linux, System Programming, Electrical and Computer Engineering, Application Deployment, Operating Systems, File Systems, Internet Of Things, Build Tools
★ 4.7 (21) · Advanced · Course · 1 - 4 Weeks

Skills you'll gain: Security Controls, Threat Management, Cybersecurity, Threat Detection, Zero Trust Network Access, Cyber Attacks, Authentications, Application Security, Cyber Risk, Information Systems Security, Data Security, Encryption, Multi-Factor Authentication, Vulnerability Assessments, Cryptography, Authorization (Computing), Identity and Access Management
★ 4.9 (8) · Intermediate · Course · 1 - 4 Weeks

LearnQuest
Skills you'll gain: Java Platform Enterprise Edition (J2EE), Application Deployment, Web Applications, Application Servers, Java, Web Servers, Java Programming, Object-Relational Mapping, Web Development, Context Management, Scripting Languages, Scripting, Middleware, Server Side, Data Storage, Data Sharing, Data Persistence, Event-Driven Programming, Enterprise Application Management, Web Components
★ 4.6 (226) · Intermediate · Specialization · 1 - 3 Months

28DIGITAL
Skills you'll gain: Semantic Web, Query Languages, Data Management, Data Integration, Data Processing, Data Access, Data Sharing, Web Applications, Data Mining, Interoperability, Software Architecture, Data Architecture, Data Modeling
★ 4.1 (94) · Intermediate · Course · 1 - 4 Weeks

University of Colorado System
Skills you'll gain: Cryptography, Cryptographic Protocols, Data Integrity, Encryption, Authentications, Data Security, Data Encryption Standard, Advanced Encryption Standard (AES), Digital Communications
★ 4.5 (102) · Intermediate · Course · 1 - 4 Weeks

University of Michigan
Skills you'll gain: Memory Management, C (Programming Language), C and C++, Data Structures, Secure Coding, Application Security, System Programming, Programming Principles
★ 4.5 (76) · Intermediate · Course · 1 - 4 Weeks

Universidad Austral
Skills you'll gain: Media Buying, Digital Media Strategy, Paid media, Online Advertising, Marketing Effectiveness, Media Strategy, Contextual Advertising, Media Planning, Performance marketing, Digital Marketing Campaigns, Digital Advertising, Campaign Management, Advertising, Advertising Campaigns, Personalized Campaigns, Business Metrics, Data-Driven Marketing, Key Performance Indicators (KPIs), Bidding
★ 4.7 (184) · Beginner · Course · 1 - 4 Weeks