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: Theoretical Computer Science, Algorithms, Graph Theory, Data Structures, Operations Research, Quantum computing, Public Key Cryptography Standards (PKCS), Cryptography, Computational Thinking, Design Strategies, Cryptographic Protocols, Applied Mathematics, Tree Maps, Encryption, Network Model, Combinatorics, Data Science, Mathematical Software, Computer Science, Python Programming
★ 4.7 (978) · Advanced · Specialization · 3 - 6 Months

Skills you'll gain: Data Storytelling, Data Presentation, Dashboard, Data Analysis Expressions (DAX), Power BI, Data Visualization, Data Transformation, Dashboard Creation, Presentations, Data Synthesis, Usability Testing, Microsoft PowerPoint, Star Schema, Data Integration, Business Intelligence Software, Microsoft Excel, Usability, Role-Based Access Control (RBAC), Business Intelligence, Data Cleansing
★ 4.6 (1.9K) · Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Security Architecture Review, Root Cause Analysis, Data Quality, Data Management, Azure Synapse Analytics, Data Validation, Data Integrity, Data Pipelines, Performance Tuning, Data Security, SQL, Database Development, System Monitoring, Extract, Transform, Load, Data Maintenance, Time Series Analysis and Forecasting, Data Governance, Query Languages, Health Insurance Portability And Accountability Act (HIPAA) Compliance, Automation
Advanced · Specialization · 3 - 6 Months

Skills you'll gain: Meta Ads Manager, Advertising Campaigns, Advertising, Target Audience, Social Media Campaigns, Marketing Budgets, Campaign Management, Social Media, Media Planning, Social Media Management, Online Advertising, Social Media Marketing, Performance Analysis, Facebook, Paid media, Performance marketing, Budget Management, Digital Advertising, Campaign Planning, Budgeting
★ 4.8 (2.8K) · Beginner · Course · 1 - 3 Months

Skills you'll gain: Information Systems Security, Business Process Modeling, Security Management, Systems Development Life Cycle, Systems Development, Information Systems, Cyber Attacks, Cybersecurity, Software Development Life Cycle, Management Information Systems, Business Process Management, Enterprise Resource Planning, IT Management, Requirements Analysis, Incident Response, Business Process, Database Management Systems, Business Intelligence, Cloud Computing, Data Management
Beginner · Specialization · 1 - 3 Months
SAS
Skills you'll gain: SAS (Software), Data Manipulation, Statistical Reporting, Data Import/Export, Requirements Analysis, Data Transformation, Data Validation, Analysis, Data Access, Statistical Programming, Statistical Analysis, Data Analysis, Data Cleansing, Exploratory Data Analysis, Data Wrangling, Data Analysis Software, Microsoft Excel, Data Processing, Data Preprocessing, Data Integration
★ 4.8 (3.5K) · Beginner · Professional Certificate · 3 - 6 Months

Case Western Reserve University
Skills you'll gain: Trial Preparation, Court Systems, Legal Proceedings, International Relations, Legal Strategy, Diplomacy, Law, Regulation, and Compliance, Public Safety and National Security, World History, Case Studies
★ 4.8 (4K) · Mixed · Course · 1 - 3 Months

LearnQuest
Skills you'll gain: SQL, Oracle Databases, Database Management, Database Development, Relational Databases, Database Design, Query Languages, Data Integrity, Data Maintenance
★ 4.6 (168) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Git (Version Control System), Version Control, Prompt Engineering, Prompt Engineering Tools, .NET Framework, Prompt Patterns, Microsoft Visual Studio, Microsoft Development Tools, ASP.NET, Development Environment, Software Documentation, Secure Coding, Integrated Development Environments, C# (Programming Language), Unit Testing, LLM Application, Large Language Modeling, Application Design, Design Software, Data Security
Intermediate · Course · 1 - 3 Months

University of California San Diego
Skills you'll gain: Telecommunications, Internet Of Things, Wireless Networks, Emerging Technologies, Communication Systems, Mobile Security, Digital Communications, Computer Networking, Network Protocols, Global Positioning Systems
★ 3.9 (1.2K) · Mixed · Course · 1 - 3 Months

Skills you'll gain: Retrieval-Augmented Generation, Embeddings, Database Systems, LLM Application, Data Storage Technologies, Databases, Database Management Systems, Database Management, AI Integrations, Database Architecture and Administration, Generative AI
★ 4.6 (102) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Payment Card Industry (PCI) Data Security Standards, Credit/Debit Card Processing, Merchant Services, Payment Processing, Payment Systems, Payment Processing and Collection, Arbitration, Loss Prevention, Customer Complaint Resolution, Claims Processing, Security Controls, Auditing, Security Strategy, Conflict Management, Transaction Processing, Negotiation, Information Technology, Business, Finance, Securities (Finance)
Intermediate · Course · 3 - 6 Months