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.

University of Michigan
Skills you'll gain: Payment Systems, Payment Processing, Financial Inclusion, FinTech, Mobile Banking, Credit/Debit Card Processing, Emerging Technologies, Transaction Processing, Security Controls, Value Propositions
★ 4.7 (1.8K) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Penetration Testing, Vulnerability Scanning, Vulnerability Assessments, Cyber Security Assessment, Brute-force attacks, Exploitation techniques, Security Testing, Cybersecurity, Technical Documentation, Test Tools, Authentications, Web Servers, GitHub, Firewall, Content Strategy
Intermediate · Course · 3 - 6 Months

Skills you'll gain: Risk Management, Enterprise Risk Management (ERM), Risk Analysis, Risk Management Framework, Governance Risk Management and Compliance, Legal Risk, Blockchain, IT Security Architecture, Cyber Risk, Information Technology Architecture, Security Architecture Review, Governance, Application Security, Project Documentation, Technical Documentation, Regulatory Compliance, Software Documentation, Law, Regulation, and Compliance, Solution Architecture, Cyber Governance
★ 4.9 (15) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: PHP (Scripting Language), Server Side, Secure Coding, Web Development, Code Reusability, Back-End Web Development, Web Applications, Data Structures, Scripting Languages, Web Servers, Scripting, Application Security, Programming Principles, Web Content, Web Development Tools, Data Validation, Debugging, Data Cleansing, Development Environment
Beginner · Course · 1 - 4 Weeks

LearnQuest
Skills you'll gain: Blockchain, Cryptography, Data Storage, Systems Architecture, Network Architecture, FinTech, Distributed Computing, Cryptographic Protocols, Programming Principles, Data Structures, Computing Platforms, Scalability, Data Integrity, Software Development Tools
★ 4.7 (15) · Intermediate · Course · 1 - 3 Months

University of California, Santa Cruz
Skills you'll gain: Bayesian Statistics, Time Series Analysis and Forecasting, Statistical Inference, Statistical Methods, R Programming, Forecasting, Statistical Programming, R (Software), Probability & Statistics, Statistical Modeling, Technical Communication, Probability, Statistics, Statistical Analysis, Statistical Reporting, Statistical Software, Probability Distribution, Data Analysis, Markov Model, Data Science
★ 4.6 (3.5K) · Intermediate · Specialization · 3 - 6 Months
Skills you'll gain: Debugging, Technical Communication, Network Troubleshooting, Performance Tuning, Problem Management, Technical Documentation, System Monitoring, Capacity Management, Incident Management, Memory Management, Continuous Integration, Continuous Monitoring
★ 4.6 (3.1K) · Beginner · Course · 1 - 4 Weeks

Infosec
Skills you'll gain: Information Privacy, NIST 800-53, Personally Identifiable Information, Data Governance, Cyber Governance, Law, Regulation, and Compliance, Records Management, Security Controls, Incident Response, Cyber Risk, Incident Management, Risk Management Framework
Beginner · Course · 1 - 4 Weeks

Packt
Skills you'll gain: Secure Coding, Java Programming, Maintainability, Hardening, Java, Software Design Patterns, Application Security, Software Design, Data Structures, Object Oriented Design, Software Architecture, Performance Tuning, Data-oriented programming, Memory Management, API Design, Code Reusability, Object Oriented Programming (OOP), Web Servers, Software Development, Virtualization
Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: iOS Development, Apple iOS, Swift Programming, Apple Xcode, Code Review, UI Components, Unit Testing, Mobile Development, User Interface (UI), User Interface (UI) Design, Application Development, User Interface and User Experience (UI/UX) Design, Application Design, Interactive Design, Code Reusability
★ 4.7 (248) · Intermediate · Course · 1 - 4 Weeks
Icahn School of Medicine at Mount Sinai
Skills you'll gain: Matlab, Bioinformatics, Mathematical Software, Quantitative Research, Unsupervised Learning, Data Synthesis, Research, Mathematical Modeling, Molecular Biology, Simulation and Simulation Software, Pharmacology, Science and Research, Cell Biology, Biotechnology, Laboratory Research, Molecular, Cellular, and Microbiology, General Science and Research, Life Sciences, Network Analysis, Biology
★ 4.4 (990) · Intermediate · Specialization · 3 - 6 Months

Automatic Data Processing, Inc. (ADP)
Skills you'll gain: Payroll Tax, Payroll, Payroll Systems, Payroll Processing, Payroll Administration, Payroll Reporting, Tax Compliance, Tax Management, Labor Compliance, Tax Returns, Tax Preparation, Compensation Management, Non-Profit Accounting, Data Entry, Income Tax, Workforce Management, Customer Service, Benefits Administration, Labor Law, Data Analysis
★ 4.7 (821) · Beginner · Professional Certificate · 3 - 6 Months