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.

The Pennsylvania State University
Skills you'll gain: Infectious Diseases, Epidemiology, Public Health and Disease Prevention, Microbiology, Public Health, Pathology, Immunology, Preventative Care, Sanitation, Social Determinants Of Health, Social Sciences, Community Health, Molecular, Cellular, and Microbiology, Medical Science and Research, Biology, Drug Development, Social Network Analysis, Case Studies
Mixed · Course · 1 - 3 Months

Skills you'll gain: Marketing Analytics, Video Production, Social Media Marketing, Business Marketing, Marketing Channel, Customer Engagement, Gmail, Target Audience, Content Creation
Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Open Shortest Path First (OSPF), Virtual Local Area Network (VLAN), OSI Models, Wide Area Networks, Network Troubleshooting, TCP/IP, Wireless Networks, Cloud Computing, Network Routing, Routing Protocols, Network Security, Network Monitoring, Event Monitoring, Threat Detection, Network Performance Management, Network Switches, Network Planning And Design, Network Administration, Network Protocols, Software-Defined Networking
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Reconciliation, Accounts Payable, Accounts Receivable, Billing, Billing & Invoicing, Invoicing, QuickBooks (Accounting Software), Cash Flow Forecasting, Spreadsheet Software, Accounting Software, Fraud detection, Financial Controls, Auditing, Vendor Management, Internal Controls, Payment Processing, Cash Management, Document Management, Financial Reporting, Cash Flows
Intermediate · Specialization · 3 - 6 Months

Indian School of Business
Skills you'll gain: Financial Statements, Financial Statement Analysis, Financial Trading, Balance Sheet, Securities Trading, Income Statement, Financial Analysis, Market Liquidity, Financial Market, Market Dynamics, Market Analysis, Order Management, Risk Management
Beginner · Course · 1 - 4 Weeks

Università Bocconi
Skills you'll gain: Leadership and Management, Business Management, Team Management, Brand Management, Leadership Studies, Brand Strategy, Innovation, Art History, Fundraising, Data-Driven Decision-Making, Customer Relationship Management, Marketing, Customer experience improvement
Mixed · Course · 1 - 3 Months
University of Toronto
Skills you'll gain: Biostatistics, Life Sciences, Data Analysis
Beginner · Course · 1 - 3 Months

Shanghai Jiao Tong University
Skills you'll gain: Combinatorics, Graph Theory, Theoretical Computer Science, Mathematical Theory & Analysis, Advanced Mathematics, Network Analysis, Computational Thinking, Algorithms, Data Structures, Computer Science
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Database Management, Databases, Relational Databases, Database Architecture and Administration, Data Security, User Accounts, Secure Coding, SQL, Application Security, Vulnerability Scanning, NoSQL, Role-Based Access Control (RBAC), Encryption, Data Manipulation
Beginner · Course · 1 - 3 Months

Packt
Skills you'll gain: Threat Management, Vulnerability Assessments, Incident Response, Computer Security Incident Management, Public Key Infrastructure, IT Security Architecture, Disaster Recovery, Vulnerability Management, Regulation and Legal Compliance, Threat Detection, Cyber Security Assessment, Risk Management, Compliance Management, Regulatory Compliance, Network Security, Infrastructure Security, Cloud Security, Hardening, Security Engineering, Software-Defined Networking
Beginner · Specialization · 1 - 4 Weeks

LearnQuest
Skills you'll gain: JUnit, Unit Testing, Test Case, Test Data, Test Script Development, Test Automation
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Network Security, Remote Access Systems, Disaster Recovery, OSI Models, General Networking, Network Administration, Network Troubleshooting, Computer Networking, Network Architecture, Network Infrastructure, Networking Hardware, Network Monitoring, TCP/IP, Virtual Private Networks (VPN), Network Protocols, Cybersecurity, Computer Security, Data Centers, Virtualization, Authentications
Intermediate · Specialization · 1 - 3 Months