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.

Johns Hopkins University
Skills you'll gain: MITRE ATT&CK Framework, Metasploit, Penetration Testing, Exploit development, Exploitation techniques, Cyber Threat Intelligence, Cybersecurity, Operating Systems, Hardening, Malware Protection, Vulnerability Assessments, Security Controls, Intrusion Detection and Prevention, System Programming, Data Persistence, Computer Architecture
Intermediate · Course · 1 - 3 Months

Coursera
Skills you'll gain: Instagram, Social Media Management, Social Media, Advertising, Social Media Marketing, Social Media Campaigns, Social Media Content, Digital Advertising, Marketing Materials, E-Commerce, Customer Engagement
Intermediate · Guided Project · Less Than 2 Hours

Google Cloud
Skills you'll gain: Google Gemini, Google Workspace, Generative AI, AI Security, Agentic Workflows, Prompt Engineering, Large Language Modeling, Enterprise Security, Research Reports
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Facebook, Customer Engagement, Customer Insights, Marketing Analytics, Target Audience, Social Media Content, Social Media Marketing, Advertising, Social Media, Drive Engagement, Social Media Management, Social Media Campaigns, Marketing, Content Marketing, Customer Communications Management
Beginner · Guided Project · Less Than 2 Hours

Skills you'll gain: Model Deployment, Apache Spark, Data Pipelines, MLOps (Machine Learning Operations), PySpark, IBM Cloud, Jupyter, Docker (Software), Machine Learning, Data Science, Python Programming, Scalability, Design Thinking
Advanced · Course · 1 - 4 Weeks

University of Colorado Boulder
Skills you'll gain: Data Ethics, Security Awareness, Computer Security Awareness Training, Ethical Standards And Conduct, Cybersecurity, Information Technology, Responsible AI, Information Privacy, Social Impact, Media and Communications, Personally Identifiable Information, Artificial Intelligence, General Data Protection Regulation (GDPR)
Build toward a degree
Beginner · Course · 1 - 4 Weeks

Johns Hopkins University
Skills you'll gain: Tidyverse (R Package), Data Wrangling, R (Software), Data Cleansing, Data Transformation, Data Manipulation, R Programming, Data Science, Exploratory Data Analysis, Data Analysis, Data Management, File Management, Data Visualization, Data Import/Export
Beginner · Course · 1 - 3 Months

Johns Hopkins University
Skills you'll gain: Responsive Web Design, HTML and CSS, Bootstrap (Front-End Framework), Web Design and Development, Web Applications, Browser Compatibility, User Experience Design, Requirements Analysis, Client Services, Javascript
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Security Controls, IT General Controls (ITGC), Cloud Security, Cloud Computing, Cyber Security Assessment, Cybersecurity, ISO/IEC 27001, Control Objectives for Information and Related Technology (COBIT), Risk Management Framework, Data Security, Identity and Access Management, Incident Response, Technical Communication
Intermediate · Course · 3 - 6 Months

LearnQuest
Skills you'll gain: Image Analysis, Supervised Learning, Applied Machine Learning, Model Evaluation, Anomaly Detection, Convolutional Neural Networks, Machine Learning, Supply Chain, Deep Learning, Classification And Regression Tree (CART), Random Forest Algorithm, Natural Language Processing, Artificial Neural Networks, Customer Demand Planning, Forecasting, Unsupervised Learning
Intermediate · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Generative AI Agents, LangChain, AI Workflows, LLM Application, Agentic systems, Development Environment, Model Evaluation, OpenAI, Artificial Intelligence, Scalability, Applied Machine Learning, Performance Tuning, Design
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Google Cloud Platform, Cloud Infrastructure, Public Cloud, Cloud Computing Architecture, Terraform, Load Balancing, Infrastructure as Code (IaC), Virtual Machines, Virtual Networking, Virtual Private Networks (VPN), Managed Services, Network Security, Scalability
Intermediate · Course · 1 - 3 Months