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: Data Mining, Anomaly Detection, Unsupervised Learning, Machine Learning Methods, Supervised Learning, Classification Algorithms, Decision Tree Learning, Data Science, Machine Learning Algorithms, Data Analysis, Machine Learning, Correlation Analysis, Bayesian Network, Algorithms, Artificial Neural Networks, Model Evaluation
★ 4.3 (75) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Medical Office Procedures, Patient Preparation, Patient Registration, Triage, Health Care Procedure and Regulation, Patient Safety, Setting Appointments, Care Coordination, Standard Operating Procedure, Clinical Documentation, Data Entry, Record Keeping, Safety and Security
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: SQL, Database Development, Databases, Debugging, Maintainability, Procedure Development
Advanced · Course · 1 - 4 Weeks

DeepLearning.AI
Skills you'll gain: Extract, Transform, Load, Data Pipelines, Data Import/Export, Tensorflow, Data Preprocessing, Data Processing, Feature Engineering, Data Transformation, Data Sharing, Model Training, Data Management, Performance Tuning, Applied Machine Learning
★ 4.5 (536) · Intermediate · Course · 1 - 4 Weeks

28DIGITAL
Skills you'll gain: Technical Standard, General Data Protection Regulation (GDPR), Personally Identifiable Information, Information Privacy, Case Law, Medical Privacy, Court Systems, Telecommunications, Legal Writing, Law, Regulation, and Compliance, Legal Research, Ethical Standards And Conduct, Data Ethics, European History, International Relations, Interoperability, Data Security, Ancient History, Cybersecurity, Emerging Technologies
★ 4.4 (385) · Intermediate · Specialization · 3 - 6 Months

28DIGITAL
Skills you'll gain: General Data Protection Regulation (GDPR), Case Law, Information Privacy, Court Systems, Law, Regulation, and Compliance, European History, Ancient History, Data Security, Regulation and Legal Compliance, Civil Law, Data Sharing
★ 4.4 (98) · Intermediate · Course · 1 - 3 Months

Tecnológico de Monterrey
Skills you'll gain: Social Media Strategy, Social Media Marketing, Social Media Campaigns, Digital Media Strategy, Content Marketing, Communication Planning, Marketing Strategies, Social Media Analytics, Marketing Communications, Content Strategy, Strategic Communication, Campaign Planning, Campaign Management, Marketing, Customer Engagement, Communication Strategies
★ 4.5 (544) · Mixed · Course · 1 - 3 Months

Skills you'll gain: Social Media Management, Social Media, Social Media Content, Social Media Marketing, Google Ads, Email Marketing, Social Media Strategy, Content Scheduling, Online Advertising, Social Media Campaigns, Content Creation, Data-Driven Marketing, Customer Retention, Meta Ads Manager, Paid media, Customer Relationship Building, E-Commerce, Digital Marketing, Driving engagement, Brand Marketing
★ 4.7 (40) · Beginner · Specialization · 1 - 3 Months

Splunk Inc.
Skills you'll gain: Splunk, Data Transformation, Data Manipulation, Statistical Analysis, Data Processing, Time Series Analysis and Forecasting, Data Cleansing, Data Analysis, Big Data, Data Science, Business Analytics, Data Visualization
★ 4.7 (57) · Beginner · Course · 1 - 3 Months
University of Illinois Urbana-Champaign
Skills you'll gain: Financial Policy, Financial Systems, Banking, Financial Market, Bank Regulations, Financial Regulation, Capital Markets, Market Liquidity, Economics, Loans, Economics, Policy, and Social Studies, Credit Risk, General Lending, Crisis Management, Crisis Intervention
★ 4.7 (125) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Cloud Infrastructure, Infrastructure As A Service (IaaS), Google Cloud Platform, Cloud Computing Architecture, Infrastructure Architecture, Virtual Networking, Virtual Machines, Cloud Computing, Network Infrastructure, Virtualization and Virtual Machines, Cloud Management, Network Administration, Network Security, Firewall, Command-Line Interface
★ 4.9 (370) · Intermediate · Course · 1 - 4 Weeks

Corporate Finance Institute
Skills you'll gain: Credit Risk, Loans, Capital Expenditure, Lending and Underwriting, General Lending, Consumer Lending, Mortgage Loans, Commercial Lending, Financial Analysis, Financial Statement Analysis, Risk Analysis, Corporate Finance
★ 4.7 (49) · Beginner · Course · 1 - 3 Months