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 Colorado Boulder
Skills you'll gain: Social Media, Social Media Strategy, Social Media Marketing, Social Media Management, Social Media Content, Marketing Communications, Target Audience, Strategic Communication, Media Strategy, Brand Marketing, Media and Communications, Brand Strategy, Brand Management, Advertising, Stakeholder Communications, Shared Media, Social Media Analytics, Persuasive Communication, Content Creation, Digital Marketing
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Disaster Recovery, Remote Access Systems, Cloud Storage, Red Hat Enterprise Linux, File Systems, Data Access, Data Storage, File Management, Network Planning And Design, Distributed Computing, Computer Networking, Servers, Network Protocols, System Configuration, Open Source Technology
Intermediate · Course · 1 - 3 Months

SkillUp
Skills you'll gain: Model Training, Decision Intelligence, Machine Learning Algorithms, Forecasting, Classification Algorithms, Dimensionality Reduction, Embeddings
Intermediate · Specialization · 1 - 3 Months

Skills you'll gain: Customer Relationship Management, Customer Relationship Management (CRM) Software, Sales Development, Sales Enablement, Inside Sales, Salesforce, Sales Operations, Sales Prospecting, Lead Generation, Sales Process, Sales Strategy, Prospecting and Qualification, Business Software, Productivity Software, Social Media Marketing, Customer Engagement, Social Media, Demand Generation, LinkedIn, Workflow Management
Beginner · Course · 1 - 3 Months

Skills you'll gain: Email Security, File Management, Control Panels, Web Analytics and SEO, MySQL, Apache, Cloud Hosting, Public Key Infrastructure, User Accounts, Security Controls, Data Security, Key Management, Encryption, Database Management, Web Servers, Email Automation, User Provisioning, Systems Administration, System Configuration, Content Management
Beginner · Specialization · 1 - 3 Months

Simplilearn
Skills you'll gain: API Testing, Performance Testing, Performance Stress Testing, Test Script Development, Application Programming Interface (API), Test Tools, Software Testing, Test Planning, Scenario Testing, System Testing, Scripting, Simulations, Scalability, Software Installation
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Dataflow, Serverless Computing, Data Pipelines, Data Processing, Cloud Security, Identity and Access Management, Google Cloud Platform, Data Security, Data Transformation, Interoperability, Containerization, Data Storage Technologies, Scalability
Intermediate · Course · 1 - 3 Months

Alex Genadinik
Skills you'll gain: Instagram, Social Media Content, Social Media Management, Facebook, Social Media Marketing, Social Media Strategy, Social Media Campaigns, Marketing Automation, Content Creation, Advertising Campaigns, Digital Advertising, Advertising, Content Strategy, Drive Engagement, Subcontracting
Mixed · Course · 1 - 3 Months

Pearson
Skills you'll gain: Open Web Application Security Project (OWASP), DevSecOps, Security Testing, CI/CD, DevOps, Application Security, Payment Card Industry (PCI) Data Security Standards, Regulatory Compliance, Devops Tools, Penetration Testing, Law, Regulation, and Compliance, Regulatory Requirements, Compliance Auditing
Intermediate · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: MLOps (Machine Learning Operations), Data Pipelines, Model Evaluation, Systems Design, Transfer Learning, Data Preprocessing, Data Quality, Feature Engineering, Deep Learning, Python Programming, Data Validation, Scikit Learn (Machine Learning Library), Applied Machine Learning, Predictive Modeling, Software Engineering, Debugging, Supervised Learning, Git (Version Control System), Performance Metric, Statistical Analysis
Intermediate · Specialization · 1 - 3 Months

Skills you'll gain: Kubernetes, Network Troubleshooting, Problem Management, Cloud-Native Computing, Event Monitoring, Network Monitoring, Debugging, System Monitoring
Intermediate · Course · 1 - 4 Weeks

Starweaver
Skills you'll gain: SQL, Business Intelligence, Query Languages, Cloud Management, Python Programming
Advanced · Course · 1 - 4 Weeks