CompTIA Security+ courses can help you learn network security, risk management, cryptography, and identity management. You can build skills in threat analysis, incident response, and implementing security controls to protect sensitive information. Many courses introduce tools like firewalls, intrusion detection systems, and vulnerability assessment software, showing how these tools are applied to safeguard networks and data against potential threats.

University of Illinois Urbana-Champaign
Skills you'll gain: Infectious Diseases, Epidemiology, Food and Beverage, Nutrition and Diet, Food Safety and Sanitation, Infection Control, Public Health and Disease Prevention, Public Health, Physiology, Preventative Care, Sustainable Systems, Immunology, Microbiology, Caregiving, Environment and Resource Management
★ 4.8 (632) · Beginner · Course · 1 - 3 Months

Infosec
Skills you'll gain: Open Web Application Security Project (OWASP), Exploitation techniques, Authentications, Vulnerability Assessments, Application Security, Vulnerability Management, Event Monitoring, Security Controls, Data Integrity, Continuous Monitoring, Secure Coding, System Monitoring, Patch Management, Identity and Access Management, Multi-Factor Authentication, Authorization (Computing), Cryptography, Extensible Markup Language (XML), System Configuration, Incident Response
★ 4.5 (126) · Intermediate · Specialization · 3 - 6 Months

University of Maryland, College Park
Skills you'll gain: Application Security, Secure Coding, Security Engineering, Vulnerability Assessments, Security Software, Security Testing, Cybersecurity, Collaborative Software, Cyber Security Assessment, Penetration Testing
★ 4.3 (158) · Intermediate · Course · 1 - 4 Weeks

Kennesaw State University
Skills you'll gain: Cyber Security Assessment, Computer Security Awareness Training, Security Awareness, Cybersecurity, Infrastructure Security, Network Security, Telecommunications, Network Infrastructure
★ 4.9 (12) · Beginner · Course · 1 - 4 Weeks
Skills you'll gain: Blockchain, Digital Assets, FinTech, Agentic systems, Financial Inclusion, Business Modeling, Financial Systems, Payment Systems, Emerging Technologies, Business Transformation, Distributed Computing, Transaction Processing, Cryptographic Protocols, Identity and Access Management, Contract Management, Cost Reduction
★ 4.7 (383) · Beginner · Course · 1 - 4 Weeks

Tel Aviv University
Skills you'll gain: Cultural Diversity, Diversity Awareness, Social Justice, Social Sciences, International Relations, World History, Socioeconomics, Culture, Political Sciences, Sociology, Diplomacy, Public History, Economic Development, Social Impact, Public Safety and National Security, Demography, Public Affairs, Economics
★ 4.8 (343) · Beginner · Course · 1 - 3 Months

Skills you'll gain: Malware Protection, Exploitation techniques, Threat Detection, Virtual Machines, Microarchitecture, Debugging, System Programming, Windows PowerShell, Virtual Environment, Programming Principles, Excel Macros, Linux
★ 4.5 (89) · Intermediate · Course · 1 - 3 Months

LearnQuest
Skills you'll gain: Data Ethics, Responsible AI, Model Training, Model Evaluation, Predictive Modeling, AI Security, OpenAI, Data Collection, Machine Learning, Predictive Analytics, Information Privacy, Artificial Intelligence, Game Theory, Large Language Modeling, Algorithms, AI literacy, Personally Identifiable Information, Machine Learning Algorithms, Analytical Skills, Analysis
★ 4.7 (998) · Beginner · Specialization · 3 - 6 Months

University of Colorado System
Skills you'll gain: Distributed Denial-Of-Service (DDoS) Attacks, Intrusion Detection and Prevention, Security Controls, Malware Protection, Security Engineering, Network Security, Security Testing, Threat Detection, Firewall, Digital Forensics, Anomaly Detection, Code Review, Network Routing, Proxy Servers, Linux, Internet Of Things
★ 4.5 (174) · Beginner · Course · 1 - 4 Weeks

Google Cloud
Skills you'll gain: No-Code Development, Email Automation, Business Process Automation, Application Deployment, Automation, Business Process, Workflow Management, Google Workspace, Application Development, Application Performance Management, User Interface and User Experience (UI/UX) Design, Security Controls, Data Integration, Authorization (Computing), Application Design, Authentications, Cloud Applications, Scripting, Google Sheets, Application Lifecycle Management
★ 4.7 (197) · Beginner · Specialization · 3 - 6 Months

LearnKartS
Skills you'll gain: Cyber Security Assessment, Security Testing, Cybersecurity, Vulnerability Scanning, Cyber Operations, Cyber Threat Intelligence, Cyber Threat Hunting, Scenario Testing, Cyber Security Strategy, Exploitation techniques, Cyber Attacks, Problem Solving, Simulations
★ 4.7 (66) · Intermediate · Course · 1 - 4 Weeks

Multiple educators
Skills you'll gain: Cloud Solutions, Cloud Security, Data Literacy, System Monitoring, Private Cloud, Data-Driven Decision-Making, Business Analytics, Team Oriented, Exploratory Data Analysis, Data Management, Hybrid Cloud Computing, Data Visualization Software, Virtual Machines, Process Design, Enterprise Security, Software As A Service, Data Processing, Data Manipulation, Statistical Software, Data Import/Export
★ 4.5 (124) · Beginner · Specialization · 1 - 3 Months