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: Accounts Payable, Accounts Payable and Receivable, Invoicing, Billing & Invoicing, Data Entry, Payment Processing and Collection, Transaction Processing, SAP Applications, Accounting Systems, SAP S/4HANA, Accounting and Finance Software, Accounting Records, General Ledger, Enterprise Resource Planning, Compliance Management
★ 2.7 (7) · Beginner · Course · 1 - 4 Weeks

University of Maryland, College Park
Skills you'll gain: Cryptography, Encryption, Cryptographic Protocols, Key Management, Communication Systems, Digital Communications, Authentications, Data Integrity, Algorithms
★ 4.6 (1.3K) · Mixed · Course · 1 - 3 Months

Skills you'll gain: Java Platform Enterprise Edition (J2EE), Java, Context Management, Web Applications, Server Side, Data Storage, Data Sharing
★ 4.5 (17) · Intermediate · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Prompt Engineering, AI Product Strategy, Generative AI, Prompt Engineering Tools, Responsible AI, Business Writing, AI literacy, Business Correspondence, Business Communication, Google Gemini, ChatGPT, Decision Intelligence, Strategic Thinking, Business Strategy, Report Writing, Key Performance Indicators (KPIs), LLM Application, Data Ethics, Writing, AI Security
Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Linux Administration, Package and Software Management, Linux, Ubuntu, Operating System Administration, File Systems, Command-Line Interface, Linux Commands, Linux Servers, Unix, Unix Commands, User Accounts, Systems Administration, Unix Shell, OS Process Management, Red Hat Enterprise Linux, Software Installation, File Management, User Provisioning, System Support
Beginner · Course · 1 - 3 Months

Skills you'll gain: Model Evaluation, Keras (Neural Network Library), Model Training, Tensorflow, Image Analysis, Artificial Neural Networks, Applied Machine Learning, Network Model, Deep Learning, Computer Vision, Machine Learning, Network Architecture
★ 4.6 (848) · Beginner · Guided Project · Less Than 2 Hours

University of Pennsylvania
Skills you'll gain: Health Insurance Portability And Accountability Act (HIPAA) Compliance, General Data Protection Regulation (GDPR), Medical Privacy, Law, Regulation, and Compliance, Information Privacy, Personally Identifiable Information, Regulatory Compliance, Regulation and Legal Compliance, Compliance Management, Data Security, Health Information Management, Data Loss Prevention, Data Management, Incident Response, Governance, Risk Management
★ 4.8 (859) · Mixed · Course · 1 - 4 Weeks

University of Virginia
Skills you'll gain: World History, International Relations, Social Studies, Diplomacy, European History, Political Sciences, Social Sciences, Socioeconomics, Economics, Policy, and Social Studies, Economics, Public Safety and National Security, Governance
★ 4.8 (1.7K) · Beginner · Course · 1 - 3 Months

Total Seminars
Skills you'll gain: AWS Identity and Access Management (IAM), Amazon Elastic Compute Cloud, Amazon Web Services, Amazon S3, Serverless Computing, Cloud Computing Architecture, Cloud Infrastructure, Cloud Management, Cloud Solutions, AWS CloudFormation, Cloud Hosting, Cloud Standards, Cloud Security, Cloud Services, Cloud Development, Cloud Platforms, AWS Kinesis, Cloud API, Cloud-Based Integration, Business Solutions
Beginner · Specialization · 3 - 6 Months

LearnQuest
Skills you'll gain: JUnit, Unit Testing, Software Testing, Test Case, Eclipse (Software), Test Tools, Test Data, Test Automation, Test Execution Engine, Integrated Development Environments, Java
★ 3.9 (54) · Intermediate · Course · 1 - 4 Weeks

KodeKloud
Skills you'll gain: Jenkins, Terraform, Ansible, Kubernetes, CI/CD, Git (Version Control System), Docker (Software), Version Control, Software Development, Data Structures, DevOps, Network Administration, Software Development Tools, Networking Hardware, Network Troubleshooting, Command-Line Interface, Web Development, Containerization, Devops Tools, Application Security
★ 4.6 (284) · Beginner · Specialization · 3 - 6 Months

Coursera
Skills you'll gain: Model Deployment, Fine-tuning, PyTorch (Machine Learning Library), Model Evaluation, Model Training, Vision Transformer (ViT), Model Optimization, Transfer Learning, MLOps (Machine Learning Operations), Natural Language Processing, Debugging, Containerization, Kubernetes, Docker (Software), Distributed Computing, Performance Tuning, Tensorflow, Deep Learning, Cloud Computing, Data Pipelines
Advanced · Specialization · 1 - 3 Months