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.

Coursera
Skills you'll gain: Underwriting, Lending and Underwriting, Regulatory Compliance, Mortgage Loans, Law, Regulation, and Compliance, Financial Regulation, Compliance Management, Credit Risk, Risk Management, Case Studies, Risk Analysis, Quality Control, AI Integrations, AI Enablement, Analysis, Predictive Analytics
Intermediate · Course · 1 - 4 Weeks

Northwestern University
Skills you'll gain: Marketing Budgets, Peer Review, Key Performance Indicators (KPIs), Social Media Marketing, Social Media Campaigns, Strategic Marketing, Marketing Strategies, Budgeting, Marketing Effectiveness, Social Media, Social Media Strategy, Marketing Planning, Performance Measurement, Performance Metric, Business Planning, Cross-Channel Marketing, Target Market, Customer Engagement, Planning, Drive Engagement
★ 4.9 (374) · Mixed · Course · 1 - 3 Months

Johns Hopkins University
Skills you'll gain: Data Literacy, Data Analysis, Applied Mathematics, Mathematical Modeling, Graphing, Trigonometry, R (Software), R Programming, General Mathematics, Data Modeling, Algebra, Systems Of Measurement, Mathematical Software, Correlation Analysis, Regression Analysis, Calculus, Business Mathematics, Geometry
★ 4.7 (330) · Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Linux Commands, Linux, Command-Line Interface, Penetration Testing, Linux Administration, General Networking, Cyber Security Assessment, Exploitation techniques, Cybersecurity, Data Ethics, Vulnerability Scanning, Network Security, System Configuration, Software Installation, Virtual Machines
★ 4.3 (38) · Beginner · Course · 1 - 3 Months

Imperial College London
Skills you'll gain: Logistic Regression, Descriptive Statistics, Exploratory Data Analysis, Regression Analysis, Model Evaluation, Statistical Methods, R Programming, Statistical Modeling, Predictive Modeling, Statistical Analysis, Biostatistics, Statistical Software, Predictive Analytics, Probability & Statistics, R (Software), Public Health, Data Preprocessing
★ 4.8 (368) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Responsible AI, Prompt Engineering, Generative AI, AI Product Strategy, Model Optimization, Risk Management Framework, Governance Risk Management and Compliance, Content Performance Analysis, Risk Management, Governance, Retrieval-Augmented Generation, Model Evaluation, Compliance Management, Data-Driven Decision-Making, Performance Analysis, Gap Analysis, Large Language Modeling, Performance Metric, Quality Assessment, Cost Benefit Analysis
Intermediate · Course · 1 - 4 Weeks

University of Michigan
Skills you'll gain: Data Visualization, Exploratory Data Analysis, Statistical Visualization, Plot (Graphics), Statistical Analysis, Data Presentation, Policy Analysis, Research, and Development, Ggplot2, Program Evaluation, Policy Analysis, Surveys, Data Ethics, R (Software), Data Analysis, Tidyverse (R Package), R Programming, Statistical Methods, Public Policies, Case Studies, Political Sciences
★ 4.6 (124) · Intermediate · Specialization · 3 - 6 Months

Columbia University
Skills you'll gain: Computer Vision, Image Quality, Image Analysis, Computer Graphics, 3D Modeling, Photography, Virtual Reality, Visualization (Computer Graphics), Medical Imaging, Artificial Neural Networks, Unsupervised Learning, Graph Theory, Dimensionality Reduction, Mathematical Modeling, Estimation, Machine Learning Algorithms, Color Theory, Algorithms, Automation Engineering, Electronic Components
★ 4.7 (243) · Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Key Management, Cryptography, Cryptographic Protocols, Advanced Encryption Standard (AES), Cybersecurity, IT Security Architecture, Public Key Infrastructure, Public Key Cryptography Standards (PKCS), Encryption, Cyber Security Policies, Network Security, Computer Security, Quantum computing, NIST 800-53, Information Privacy, Security Management, Risk Management, Network Protocols, Negotiation, Communication
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: LangChain, GitHub Copilot, Agentic Workflows, CI/CD, LangGraph, AI Orchestration, AI Workflows, AI Integrations, DevOps, Continuous Deployment, Generative AI Agents, Application Deployment, Test Automation, AI Product Strategy, Agentic systems, Enterprise Application Management, Continuous Monitoring, Technology Strategies, Scalability
Intermediate · Course · 1 - 4 Weeks

ConsenSys Academy
Skills you'll gain: Blockchain, Cryptography, Interoperability, Cryptographic Protocols, Encryption, Public Key Cryptography Standards (PKCS), FinTech, Emerging Technologies, Ledgers (Accounting), Distributed Computing, Case Studies, Digital Assets, Data Integrity, Transaction Processing
★ 4.7 (846) · Beginner · Course · 1 - 3 Months

Coursera
Skills you'll gain: Invoicing, Billing & Invoicing, Accounting Records, Billing, Excel Formulas, Spreadsheet Software, Tax Compliance, Payment Processing and Collection, Tax Management, Microsoft Excel, Regulation and Legal Compliance, Sales Tax, Regulatory Requirements, Automation
Beginner · Course · 1 - 4 Weeks