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.

LearnQuest
Skills you'll gain: Angular, JavaScript Frameworks, UI Components, Data Transformation, User Interface (UI), Dataflow, Hypertext Markup Language (HTML), Code Reusability, Application Frameworks, Cascading Style Sheets (CSS), Model View Controller
★ 4.2 (15) · Beginner · Course · 1 - 4 Weeks

DeepLearning.AI
Skills you'll gain: Prompt Engineering, Large Language Modeling, Prompt Patterns, Database Design, LLM Application, Database Development, Software Documentation, Software Design Patterns, Vibe coding, Databases, Collaborative Software, Software Testing, OpenAI API, Application Design, Technical Documentation, AI Integrations, Generative AI, Software Engineering, Software Development, Machine Learning
★ 4.6 (824) · Beginner · Professional Certificate · 1 - 3 Months

Skills you'll gain: Vulnerability Management, Threat Modeling, Open Web Application Security Project (OWASP), Intrusion Detection and Prevention, Incident Response, Computer Security Incident Management, Stakeholder Communications, Vulnerability Assessments, Threat Detection, Event Monitoring, Cyber Attacks, Hardening, Network Security, Security Controls, Data Ethics, Bash (Scripting Language), Cybersecurity, Linux, Debugging, SQL
★ 4.7 (464) · Beginner · Professional Certificate · 3 - 6 Months

Skills you'll gain: Node.JS, Restful API, Back-End Web Development, Object-Relational Mapping, Web Development, Authentications, Web Applications, Web Services, Unit Testing, Authorization (Computing), Databases, Data Validation, TypeScript, SQL, Hypertext Markup Language (HTML), Debugging, Data Cleansing, Middleware, HTML and CSS, Javascript
Intermediate · Course · 1 - 3 Months

Coursera
Skills you'll gain: Data Transformation, Data Wrangling, R (Software), Data Analysis, Data Manipulation, R Programming, Data Cleansing, Scripting, Programming Principles, Data Structures
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Management Consulting, Strategic Planning, Business Strategy, Data Presentation, Business Consulting, Interactive Data Visualization, Data Visualization, Stakeholder Engagement, Business Analysis, Stakeholder Management, Generative AI, Microsoft Excel, Problem Solving, Requirements Analysis, Process Improvement, Change Management, Financial Modeling, Lean Six Sigma, Key Performance Indicators (KPIs), Communication
★ 4.7 (4.9K) · Beginner · Professional Certificate · 3 - 6 Months

University of Maryland, College Park
Skills you'll gain: Cryptography, Encryption, Cryptographic Protocols, Key Management, Cybersecurity, Communication Systems, Digital Communications, Authentications, Data Integrity, Algorithms
★ 4.6 (1.3K) · Mixed · Course · 1 - 3 Months

Coursera
Skills you'll gain: Delegation Skills, Scalability, Workflow Management, Accountability, Automation, Business Process Automation, Collaborative Software, Coordination, Technical Documentation, Editing, Document Control
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Blockchain, Cryptography, FinTech, Digital Assets, Cryptographic Protocols, Payment Systems, Encryption, Financial Systems, Investments, Transaction Processing, Finance, Financial Regulation, Regulatory Compliance, Market Dynamics
Mixed · Course · 1 - 3 Months

Google Cloud
Skills you'll gain: Google Cloud Platform, Cloud Infrastructure, Data Infrastructure, Cloud Storage, Data Storage, Big Data, Data Processing, Model Training, Data Storage Technologies, Model Deployment, Infrastructure Architecture, File Systems, Data Pipelines, File Management, File I/O, Scalability
Intermediate · Course · 1 - 3 Months

Coursera
Skills you'll gain: Brand Awareness, Brand Management, Canva (Software), Brand Marketing, Brand Strategy, Social Media Analytics, Branding, Content Scheduling, Logo Design, Digital Marketing Tools, Social Media, Social Media Marketing, Social Media Campaigns, Social Media Content, Email Marketing, Data Presentation, Digital Marketing, Generative AI, Content Creation, Marketing Analytics
★ 4.6 (1.8K) · Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Technical Analysis, Financial Trading, Blockchain, Market Data, Digital Assets, Key Management, Market Trend, Business Modeling, Asset Management, Financial Market, Risk Management, Financial Analysis, Trend Analysis, Strategic Thinking, FinTech, Fraud detection, Market Analysis, Investments, Due Diligence, Finance
Mixed · Course · 1 - 3 Months