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.

Skills you'll gain: Keras (Neural Network Library), Tensorflow, Model Training, Applied Machine Learning, Convolutional Neural Networks, Deep Learning, Model Optimization, Machine Learning, Computer Vision
★ 4.7 (78) · Intermediate · Guided Project · Less Than 2 Hours

FundaĂ§Ă£o Instituto de AdministraĂ§Ă£o
Skills you'll gain: Workforce Management, People Analytics, Big Data, HR Tech, Applied Machine Learning, Workforce Planning, Data Mining, Data-Driven Decision-Making, Human Resource Strategy, Deep Learning, Human Resource Management, Human Resources Management and Planning, Data Strategy, Workforce Development, Digital Transformation, Machine Learning Methods, Data Engineering, Human Resources, Analytics, Data Science
★ 4.3 (84) · Beginner · Specialization · 1 - 3 Months

University of Colorado System
Skills you'll gain: Natural Language Processing, grep, Text Mining, Clinical Informatics, Clinical Documentation, Clinical Data Management, R (Software), R Programming, Google Cloud Platform, Health Informatics, Unstructured Data, Data Processing
★ 3.7 (23) · Intermediate · Course · 1 - 3 Months

John Wiley & Sons
Skills you'll gain: Fundraising, Philanthropy, Advocacy, Social Impact, Crisis Management, Ethical Standards And Conduct, Law, Regulation, and Compliance, Social Justice, Regulation and Legal Compliance, Social Sciences, Drive Engagement, Decision Making, Cultural Sensitivity, Intercultural Competence
Intermediate · Course · 1 - 3 Months

Pragmatic AI Labs
Skills you'll gain: Claude Code, Infrastructure as Code (IaC), CI/CD, Bash (Scripting Language), PostgreSQL, Redis, Google Cloud Platform, Ubuntu, Agile Project Management, Continuous Integration, Prometheus (Software), Object Oriented Design, Data Pipelines, Linux Commands, SQL, Web Development Tools, Extract, Transform, Load, Amazon S3, Computational Logic, Software Development
★ 3.4 (8) · Beginner · Specialization · 3 - 6 Months

Coursera
Skills you'll gain: Goal Setting, Project Management, Project Management Software, Project Performance, Team Performance Management, Organizational Strategy
Beginner · Course · 1 - 4 Weeks

SkillUp
Skills you'll gain: Dynamic Host Configuration Protocol (DHCP), Remote Access Systems, Windows Servers, iSCSI Configuration, Virtual Private Networks (VPN), Microsoft Servers, Microsoft Windows, Network Administration, Microsoft Azure, Network Infrastructure, Public Key Infrastructure, Data Storage Technologies, Infrastructure As A Service (IaaS), Data Storage, Network Security, Cloud Storage, Hybrid Cloud Computing, Proxy Servers, File Management, File Systems
★ 5 (8) · Intermediate · Course · 1 - 4 Weeks

John Wiley & Sons
Skills you'll gain: Lifelong Learning, Professionalism, Drive Engagement, Willingness To Learn, Client Services, Personal Development, Workplace inclusivity, Motivational Skills, Self-Motivation, Curiosity, Professional Development, Employee Engagement, Adaptability, Leadership, Emotional Intelligence, Mentorship, Performance Improvement, Critical Thinking and Problem Solving, Communication Strategies, Critical Thinking
Intermediate · Course · 1 - 3 Months

John Wiley & Sons
Skills you'll gain: Secure Coding, Application Security, Mobile Security, Vulnerability Assessments, Vulnerability Management, Application Frameworks, Risk Management Framework, Cyber Security Policies, Computer Security, C and C++, Java Programming, C++ (Programming Language), PHP (Scripting Language), Python Programming, C (Programming Language), Memory Management
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Cryptography, Encryption, Cloud Security, Cryptographic Protocols, Cyber Security Assessment, Data Encryption Standard, Cloud Computing, Advanced Encryption Standard (AES), Data Security, Key Management, Data Loss Prevention, Public Key Infrastructure, Cloud Platforms
Intermediate · Course · 1 - 4 Weeks
Skills you'll gain: Django (Web Framework), Web Applications, Web Development, Expense Reports, Back-End Web Development, Expense Management, Application Development, Database Application, Data Visualization, Business Process Automation, Chart.js, Data Modeling, Business Logic, Development Environment, Data Security, GitHub, Javascript, Project Documentation, Git (Version Control System)
★ 4.3 (8) · Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Technical Communication, Language Competency, English Language, Health Technology, Telecommuting, Language Learning, End User Training and Support, Vocabulary, Oral Comprehension, Education Software and Technology, Grammar, Data Security
★ 4.1 (18) · Mixed · Course · 1 - 3 Months