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.

AI CERTs
Skills you'll gain: Law, Regulation, and Compliance, Regulatory Compliance, Demand Generation, Property Management, Decision Intelligence, Real Estate Transactions, Real Estate Sales, Customer Engagement, Automation, Risk Management, Decision Making, Data Analysis, Market Analysis
★ 3.4 (7) · Beginner · Course · 1 - 3 Months

LearnQuest
Skills you'll gain: Inside Sales, Sales, Sales Prospecting, Sales Training, Sales Strategy, Web Presence, Selling Techniques, Prospecting and Qualification, Product Demonstration, Virtual Teams, Digital Brand Strategy, Technical Sales, Sales Pipelines, Rapport Building, Sales Presentations, Relationship Building, Virtual Environment, Customer Engagement, Customer Success Management, Drive Engagement
Beginner · Specialization · 1 - 3 Months

Skills you'll gain: Google Analytics, Web Analytics, Data-Driven Marketing, Marketing Analytics, Content Performance Analysis, Digital Analysis, Data-Driven Decision-Making, Analytics, Performance Reporting, Driving engagement, Performance Metric, Performance Analysis
Beginner · Course · 1 - 4 Weeks

AI CERTs
Skills you'll gain: Curriculum Planning, Classroom Management, Curriculum Development, Instructional and Curriculum Design, Teaching, Instructional Strategies, Student Engagement
Beginner · Course · 1 - 3 Months

John Wiley & Sons
Skills you'll gain: Database Systems, Database Management, Database Administration, Relational Databases, Databases, Database Architecture and Administration, Database Management Systems, Database Software, Database Theory, Transaction Processing, Scripting, Scripting Languages, Disaster Recovery, SQL, Data Security, NoSQL, Data Manipulation, Data Analysis
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Exploit development, Metasploit, Exploitation techniques, Penetration Testing, Database Management, Cryptography, Security Testing, Cyber Security Assessment, Data Import/Export, Encryption, Vulnerability Assessments, Cybersecurity, SQL, Command-Line Interface
★ 4.8 (20) · Mixed · Course · 1 - 4 Weeks

AI CERTs
Beginner · Course · 1 - 3 Months

Coursera
Skills you'll gain: Blockchain, Rust (Programming Language), Program Development, Application Deployment, Command-Line Interface, Build Tools, Transaction Processing, Cryptographic Protocols, Scalability
Beginner · Course · 1 - 4 Weeks

DeepLearning.AI
Skills you'll gain: AI Enablement, AI Product Strategy, Artificial Intelligence, AI literacy, Responsible AI, Business Strategy, Team Building, Data Ethics, Data Science, Artificial Neural Networks, Machine Learning, Deep Learning, Social Impact, Sales, Writing
★ 4.8 (25) · Beginner · Course · 1 - 4 Weeks

Erasmus University Rotterdam
Skills you'll gain: R Programming, Statistical Modeling, Statistical Methods, Regression Analysis, Correlation Analysis, Statistical Analysis, R (Software), Data Preprocessing, Mathematical Modeling, Model Evaluation
★ 3.9 (21) · Intermediate · Course · 1 - 4 Weeks

Pragmatic AI Labs
Skills you'll gain: GitHub Copilot, Model Context Protocol, GitHub, Responsible AI, Git (Version Control System), Model Evaluation, AI Integrations, Object-Relational Mapping, Package and Software Management, Restful API, Open Source Technology, CI/CD, AI Security, Security Controls, Generative AI, Agentic Workflows, Security Strategy, Enterprise Architecture, Automation Engineering, Machine Learning
★ 3.5 (6) · Beginner · Specialization · 3 - 6 Months

John Wiley & Sons
Skills you'll gain: AI Personalization, AI Enablement, Fraud detection, AI Product Strategy, Artificial Intelligence, Digital Transformation, Artificial Intelligence and Machine Learning (AI/ML), Business Analytics, Business Process Automation, Social Media, Health Technology, Deep Learning, AI literacy, Automation, Machine Learning, Applied Machine Learning, Data-Driven Decision-Making, Computer Vision, Natural Language Processing, Predictive Analytics
Beginner · Course · 3 - 6 Months