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.

Coursera
Skills you'll gain: Responsible AI, Threat Modeling, MLOps (Machine Learning Operations), Security Testing, Secure Coding, Cost Management, Data Ethics, Data Governance, Experimentation, Prompt Engineering, Application Security, CI/CD, Automation, Financial Forecasting, Compliance Management, Governance, Technical Documentation, Vulnerability Assessments, Risk Management, Stakeholder Communications
Intermediate · Specialization · 3 - 6 Months

DeepLearning.AI
Skills you'll gain: Database Design, Software Design Patterns, OpenAI API, Application Design, Database Management, AI Enablement, Software Architecture, System Design and Implementation, Software Development, Query Languages, Secure Coding, Application Programming Interface (API), Performance Tuning
Beginner · Course · 1 - 4 Weeks

Starweaver
Skills you'll gain: Customer experience strategy (CX), Service Design, Change Management, Social Media Campaigns, Hospitality Management, Social Media Marketing, Process Mapping, Key Performance Indicators (KPIs), Hospitality Services, Design Thinking, Brand Marketing, Service Management, Customer experience improvement, Digital Marketing, Design, Social Media Management, Prototyping, Content Marketing, Leadership, Search Engine Optimization
Intermediate · Specialization · 1 - 3 Months

Johns Hopkins University
Skills you'll gain: Magnetic Resonance Imaging, Data Analysis, Analytical Skills, Image Analysis, Statistical Analysis, Advanced Analytics, Network Analysis, Psychology, Time Series Analysis and Forecasting, Matlab, Neurology, Statistical Modeling, Statistical Methods
Mixed · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Social Media Marketing, Instagram, Business Intelligence, Predictive Modeling, Predictive Analytics, Case Studies
Intermediate · Course · 1 - 4 Weeks

L&T EduTech
Skills you'll gain: Electrical Systems, Electric Power Systems, Electrical Power, Control Systems, Electrical Equipment, Three-Phase, High Voltage, Wiring Diagram, Systems Analysis, Simulation and Simulation Software, Electrical Engineering, Network Analysis, Engineering Analysis, Numerical Analysis, Low Voltage, Mathematical Modeling, Simulations, Power Electronics, Graph Theory, Differential Equations
Intermediate · Specialization · 1 - 3 Months

University of Colorado Boulder
Skills you'll gain: Model Based Systems Engineering, Failure Analysis, Systems Engineering, Engineering Management, Requirements Management, Scope Management, Design Reviews, Project Scoping, Root Cause Analysis, Program Management, Requirements Analysis, Test Engineering, User Requirements Documents, Cost Management, Contract Management, Systems Design, Business Requirements, Systems Thinking, Project Risk Management, Risk Management
Build toward a degree
Beginner · Specialization · 3 - 6 Months

Universidad de Palermo
Skills you'll gain: E-Commerce, Branding, Entrepreneurship, Sales, Social Media, Business Development, Social Media Marketing, Payment Systems, Web Design and Development, Logistics, User Experience, Market Trend
Beginner · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Hardware Architecture, Bash (Scripting Language), Distributed Computing, Scalability, Computer Systems, File I/O, Big Data, Operating Systems, File Systems, Scripting, Command-Line Interface, C and C++, Performance Tuning, Computer Programming Tools, Linux, Load Balancing, Programming Principles, Communication Systems, Linear Algebra
Advanced · Specialization · 3 - 6 Months

Vanderbilt University
Skills you'll gain: AI Orchestration, LangChain, OpenAI API, Generative AI Agents, Prompt Patterns, AI Workflows, Prompt Engineering, Agentic systems, AI Security, Large Language Modeling, Business Logic, File I/O, Transaction Processing, Document Management, Persona Development, Coordination, Plan Execution
Beginner · Course · 1 - 3 Months

University of Colorado System
Skills you'll gain: Cryptography, Cybersecurity, Encryption, Public Key Cryptography Standards (PKCS), Brute-force attacks, Data Integrity
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Prompt Engineering, Marketing Automation, AI Personalization, Marketing Effectiveness, Marketing, Content Marketing, Marketing Strategies, MarTech, Advertising Campaigns, Agentic Workflows, AI Enablement, Marketing Analytics, Customer Relationship Management, Data-Driven Decision-Making, Social Media Management, Customer experience improvement
Intermediate · Course · 1 - 4 Weeks