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 State University of New York
Skills you'll gain: Market Liquidity, Financial Market, Distributed Computing, Financial Policy, Identity and Access Management, Financial Regulations, Financial Systems, Financial Regulation, Financial Services, Payment Processing, Network Protocols, Digital Transformation, Emerging Technologies, Transaction Processing, Application Deployment, Scalability, Computing Platforms, Governance, Technical Standard, System Programming
★ 4 (15) · Beginner · Specialization · 1 - 3 Months

Automatic Data Processing, Inc. (ADP)
Skills you'll gain: Recruitment, Talent Recruitment, Professional Networking, Applicant Tracking Systems, Recruitment Strategies, Relationship Building, Talent Acquisition, Talent Pipelining, Human Resources, Labor Compliance, Law, Regulation, and Compliance, Regulatory Compliance, Talent Sourcing, HR Tech, Regulatory Requirements, Labor Law, Web Presence, Value Propositions, Copywriting
★ 5 (15) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Facebook, Customer Analysis, Customer Engagement, Customer Insights, Marketing Analytics, Target Audience, Social Media Content, Social Media Marketing, Advertising Campaigns, Driving engagement, Advertising, Social Media, Social Media Management, Web Presence, Social Media Campaigns, Content Creation, Content Marketing, Customer Communications Management, Email Automation
★ 4.5 (113) · Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Target Audience, Meta Ads Manager, Generative AI, Social Media Marketing, Social Media, Social Media Content, Social Media Strategy, Digital Marketing Tools, AI powered creativity, Content Creation, Digital Marketing
★ 4.7 (58) · Beginner · Course · 1 - 4 Weeks

Johns Hopkins University
Skills you'll gain: Electronics, Communication Systems, Digital Communications, Telecommunications, Digital Signal Processing, Electronic Components, Hardware Troubleshooting, Computer Hardware, Network Analysis
★ 4.9 (14) · Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Network Troubleshooting, Network Performance Management, Technical Communication, Technical Support and Services, Technical Support, Network Administration, Debugging, End User Training and Support, Help Desk Support, Problem Management, Network Analysis
★ 5 (11) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: MongoDB, Restful API, API Design, NoSQL, Database Development, Node.JS, Query Languages, Application Programming Interface (API), Database Management, Distributed Computing, Data Store, Database Design, Database Architecture and Administration, Performance Tuning, Object-Relational Mapping, Scalability, Data Integrity, Data Modeling, Data Validation
★ 4.7 (65) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Relational Databases, Data Visualization, Data Modeling, Cloud Security, Database Management, Database Development, Inventory and Warehousing, Business Intelligence Software, Data Analysis Expressions (DAX), Cloud Management, Advanced Analytics, Cloud-Based Integration, Data Wrangling, Data Management, Performance Measurement, Data Governance, Microsoft Excel, Business Reporting, Cloud Storage, Spreadsheet Software
★ 4.5 (38) · Intermediate · Specialization · 3 - 6 Months

O.P. Jindal Global University
Skills you'll gain: Computational Logic, Machine Learning Algorithms, Classification Algorithms, Natural Language Processing, Artificial Intelligence, Agentic systems, AI literacy, Machine Learning Methods, Machine Learning, Artificial Intelligence and Machine Learning (AI/ML), Decision Support Systems, Bayesian Network, Complex Problem Solving, Probability & Statistics, Algorithms
★ 4.4 (10) · Mixed · Course · 3 - 6 Months

John Wiley & Sons
Skills you'll gain: Sprint Planning, Team Motivation, Project Schedules, Project Estimation, Project Scoping, Team Performance Management, Project Management, Team Building, Project Planning, Team Management, Work Breakdown Structure, Scheduling, Agile Project Management, Scope Management, Project Coordination, Estimation, Cost Estimation, Agile Methodology, Leadership, Risk Management
Intermediate · Course · 1 - 3 Months

SkillsBooster Academy
Skills you'll gain: Anthropic Claude, Copywriting, Email Automation, Responsible AI, Brand Marketing, Marketing, Content Development and Management, Personalized Campaigns, Marketing Automation, Email Marketing, Marketing Strategies, Data Ethics, Social Media Marketing, Digital Marketing, AI Orchestration, Generative AI, Search Engine Marketing, Artificial Intelligence, Web Analytics and SEO, Business
★ 4.3 (8) · Beginner · Course · 1 - 3 Months

Coursera
Skills you'll gain: Cryptography, Encryption, Application Development, Security Engineering, C and C++, C++ (Programming Language)
★ 4.2 (17) · Intermediate · Guided Project · Less Than 2 Hours