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 California, Irvine
Skills you'll gain: Salesforce, Sales Enablement, Sales Pipelines, Data Management, Sales Development, Stakeholder Engagement, Customer Relationship Management (CRM) Software, Marketing Automation, Customer Relationship Management, Data Security, Security Management, Customer Engagement, User Accounts, Customer Success Management, Marketing Management, Cloud-Based Integration, Customer Communications Management, Account Management, Automation, Business Reporting
Beginner · Course · 1 - 4 Weeks

ESSEC Business School
Skills you'll gain: Hospitality Management, Hospitality, Marketing Channel, Business Modeling, Revenue Management, Direct Marketing, Booking (Sales), E-Commerce, Online Advertising, Web Analytics, Marketing Strategies, Web Design and Development
Mixed · Course · 1 - 4 Weeks
University of Illinois Urbana-Champaign
Skills you'll gain: Customer Engagement, Digital Marketing, Marketing Strategy and Techniques, MarTech, Social Media Marketing, Loyalty Programs, Consumer Behaviour, Marketing Communications, Customer experience strategy (CX), Content Creation, Content Strategy, Marketing Psychology, Search Engine Optimization, Paid media, Artificial Intelligence, Analytics, Generative AI, Data Analysis, Data Visualization, Data Collection
Build toward a degree
Beginner · Course · 1 - 4 Weeks
Duke University
Skills you'll gain: Materials science, Prototyping, Engineering, Scientific, and Technical Instruments, Laboratory Techniques, Chemistry, Manufacturing Processes, Micrometer, Image Analysis, Chemical Engineering
Mixed · Course · 1 - 3 Months

Arizona State University
Skills you'll gain: Digital pedagogy, Grammar, English Language, Language Learning, Oral Comprehension, Vocabulary, Requirements Analysis
Intermediate · Course · 1 - 3 Months

Google Cloud
Skills you'll gain: Google Gemini, Gemini, AI Security, Cloud Deployment, Customer Insights, Customer Analysis, Kubernetes, Generative AI, Customer Data Management, Big Data, Google Cloud Platform, Test Script Development, Software Development Life Cycle, Cloud Security, Development Testing, Virtual Networking, Application Deployment, DevOps, Application Development, Security Engineering
Intermediate · Specialization · 1 - 3 Months

Digital Marketing Institute
Skills you'll gain: Social Media Marketing, Social Media, Social Media Strategy, Social Media Management, Digital Media Strategy, Facebook, Content Marketing, Instagram, LinkedIn, Digital Marketing, Social Media Campaigns, Marketing, Target Audience, Marketing Strategies, Advertising Campaigns, Digital Content, Digital Advertising, Web Analytics, Brand Awareness, B2B Sales
Beginner · Specialization · 3 - 6 Months

Unilever
Skills you'll gain: Data Storytelling, Marketing Automation, Web Analytics, Marketing Effectiveness, Marketing Analytics, Customer Insights, Digital Marketing, Market Analysis, Google Analytics, Social Media Marketing, Customer Analysis, Search Engine Marketing, Advertising Campaigns, Marketing Strategies, Social Media Strategy, Customer experience strategy (CX), Performance Reporting, Search Engine Optimization, Keyword Research, MarTech
Beginner · Professional Certificate · 3 - 6 Months

Yonsei University
Skills you'll gain: Wireless Networks, Communication Systems, Telecommunications, Digital Communications, System Design and Implementation, Network Protocols, Emerging Technologies
Beginner · Course · 1 - 3 Months

Infosec
Skills you'll gain: Open Web Application Security Project (OWASP), Authentications, Vulnerability Assessments, Application Security, Vulnerability Management, Event Monitoring, Secure Coding, Security Controls, Hardening, Data Integrity, Security Testing, System Monitoring, Cybersecurity, Patch Management, Threat Modeling, Exploitation techniques, Authorization (Computing), Cryptography, Extensible Markup Language (XML), System Configuration
Intermediate · Specialization · 3 - 6 Months

Coursera
Skills you'll gain: Financial Modeling, Variance Analysis, Financial Statements, Revenue Forecasting, Budget Management, Financial Statement Analysis, Financial Forecasting, Business Intelligence, Power BI, Financial Analysis, Cash Flows, Cost Management, Spreadsheet Software, Balance Sheet, Financial Reporting, Microsoft Excel, Dashboard, Data Visualization, Key Performance Indicators (KPIs), Capital Budgeting
Intermediate · Specialization · 1 - 3 Months

Skills you'll gain: Virtual Networking, Open Shortest Path First (OSPF), Network Planning And Design, TCP/IP, Computer Networking, System Monitoring, Wireless Networks, Network Routing, Security Controls, Network Switches, Cloud Infrastructure, Local Area Networks, Puppet (Configuration Management Tool), Wide Area Networks, Virtual Machines, Chef (Configuration Management Tool), Real Time Data, Authentications, Scripting, JSON
Intermediate · Specialization · 1 - 3 Months