Network security courses can help you learn about firewalls, intrusion detection systems, and encryption protocols. You can build skills in risk assessment, incident response, and vulnerability management. Many courses introduce tools like Wireshark for network analysis, Nessus for vulnerability scanning, and various security information and event management (SIEM) systems, showing how these skills are applied in practical work to protect networks from cyber threats.

Skills you'll gain: JUnit, Test Driven Development (TDD), Version Control, Git (Version Control System), GitHub, Performance Tuning, Unit Testing, Data Structures, Java Programming, Development Testing, Algorithms, Program Development, Software Testing, Java, Test Automation, Test Case, Software Development, Scalability
★ 4 (64) · Beginner · Course · 1 - 4 Weeks

LearnQuest
Skills you'll gain: Responsible AI, AI Security, Information Privacy, Personally Identifiable Information, Model Evaluation, AI literacy, Technical Communication, Quality Assurance, Generative AI Agents, Quality Assessment, Scalability, Acceptance Testing, Maintainability, Compliance Management, Application Lifecycle Management, Data Governance, Performance Measurement, Business Metrics, Risk Control, Risk Mitigation
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Surveys, Market Research, Customer Insights, Data-Driven Marketing, Marketing, Customer Analysis, User Research, Research Methodologies, Market Analysis, Data Collection
Beginner · Course · 1 - 4 Weeks

University of Colorado System
Skills you'll gain: Cryptography, Data Encryption Standard, Encryption, Advanced Encryption Standard (AES), Cryptographic Protocols, Application Security, Key Management, Public Key Cryptography Standards (PKCS), Secure Coding, Web Development, Email Security, PHP (Scripting Language), Authentications, Intrusion Detection and Prevention, Data Integrity, Algorithms, Command-Line Interface
★ 4.5 (102) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Prompt Engineering, Prompt Patterns, Prompt Engineering Tools, AI literacy, Document Management, Context Engineering, AI Integrations, Artificial Intelligence, Generative AI, Safety and Security
★ 3.5 (12) · Beginner · Course · 1 - 4 Weeks

Google Cloud
Skills you'll gain: Google Workspace, Gmail, Control Panels, Technical Support, Email Security, Issue Tracking, Technical Communication, Systems Administration, Data Access, Cloud Storage, Security Controls, Event Monitoring, File Management
★ 4.6 (27) · Beginner · Course · 1 - 4 Weeks
Skills you'll gain: AI Enablement, Google Sheets, Google Gemini
★ 4.8 (34) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Identity and Access Management, Google Cloud Platform, Cloud Infrastructure, Cloud Computing, Cloud Management, Cloud Solutions, Infrastructure As A Service (IaaS), Data Storage Technologies, Data Storage, Cloud Services, Data Store, Cloud Storage, Security Controls, Role-Based Access Control (RBAC), System Monitoring, Capacity Management
★ 4.8 (256) · Intermediate · Course · 1 - 3 Months

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

John Wiley & Sons
Skills you'll gain: Financial Statements, Financial Statement Analysis, Capital Budgeting, International Finance, Portfolio Management, Financial Analysis, Corporate Finance, Income Statement, Financial Modeling, Business Valuation, Balance Sheet, Behavioral Economics, Risk Management, Portfolio Risk, Financial Management, Corporate Strategy, Investment Management, Financial Market, Cash Flows, Forecasting
Beginner · Course · 3 - 6 Months
CertNexus
Skills you'll gain: Data Ethics, Responsible AI, Accountability Frameworks, Risk Control, Accountability, Risk Management, Risk Analysis, Business Risk Management, Information Privacy, Risk Management Framework, Risk Mitigation, Personally Identifiable Information, Safety Assurance, Safety and Security, Safety Standards, Ethical Standards And Conduct, Artificial Intelligence, Diversity and Inclusion
★ 4.5 (102) · Beginner · Course · 1 - 3 Months

Johns Hopkins University
Skills you'll gain: Social Network Analysis, Network Analysis, Social Media Analytics, Data Visualization, Graph Theory, Relational Databases, Data Presentation, Data Visualization Software, R (Software), Infographics, Data Analysis, Network Model, Database Theory, Query Languages, Social Sciences, Statistical Analysis, Machine Learning, Machine Learning Methods, R Programming, Data Manipulation
★ 4.4 (22) · Intermediate · Specialization · 3 - 6 Months