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.

LearnQuest
Skills you'll gain: Threat Modeling, IT Security Architecture, Threat Management, Security Architecture Review, Internet Of Things, Network Security, Information Systems Security, Security Controls, Data Security, Cryptographic Protocols, Vulnerability Assessments, Risk Management Framework, Cloud Computing
★ 4.6 (8) · Intermediate · Course · 1 - 4 Weeks

LearnQuest
Skills you'll gain: System Programming, Visual Basic (Programming Language), System Software, Hardware Architecture, Databases, Relational Databases, Algorithms, Computer Architecture, Network Security, Computer Hardware, SQL, Computer Science, Computer Networking, Computer Programming, Network Protocols, Programming Principles, Automation, Cloud Computing, Artificial Intelligence, Debugging
★ 4.6 (113) · Beginner · Course · 1 - 3 Months

University of California, Irvine
Skills you'll gain: Test Planning, Embedded Systems, Linux, Internet Of Things, Embedded Software, Network Protocols, Basic Electrical Systems, Automation Engineering, User Requirements Documents, Functional Specification, Electronics, Functional Requirement, Electronic Components, Linux Commands, Systems Design, Operating Systems, Debugging, Cloud API, Application Programming Interface (API), Python Programming
★ 4.7 (20K) · Beginner · Specialization · 3 - 6 Months

University of Colorado System
Skills you'll gain: Intrusion Detection and Prevention, Threat Detection, Open Web Application Security Project (OWASP), Incident Response, Penetration Testing, Risk Analysis, Computer Security Incident Management, Metasploit, Distributed Denial-Of-Service (DDoS) Attacks, Cybersecurity, Data Security, Authentications, Security Testing, Cloud Security, Security Strategy, Threat Management, Endpoint Detection and Response, Incident Management, Risk Management, Cyber Attacks
★ 4.7 (1.9K) · Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Vulnerability Management, Threat Modeling, Incident Response, Intrusion Detection and Prevention, Threat Management, Network Security, Operating Systems, Threat Detection, Risk Management, Security Information and Event Management (SIEM), Risk Management Framework, Computer Security Incident Management, Cyber Attacks, Bash (Scripting Language), Security Controls, Cybersecurity, Debugging, File I/O, Linux, SQL
★ 4.9 (7.4K) · Beginner · Professional Certificate · 3 - 6 Months

University of California San Diego
Skills you'll gain: Apache Spark, Model Evaluation, Apache Hadoop, Data Integration, Exploratory Data Analysis, Big Data, Classification Algorithms, Graph Theory, Data Pipelines, Data Processing, Network Model, Model Training, Database Design, Data Modeling, Regression Analysis, Data Management, Data Infrastructure, Data Presentation, Data Mining, MongoDB
★ 4.5 (14K) · Beginner · Specialization · 3 - 6 Months

Simplilearn
Skills you'll gain: Git (Version Control System), Version Control, DevSecOps, Devops Tools, DevOps, CI/CD, Open Web Application Security Project (OWASP), Continuous Delivery, IT Automation, Collaborative Software, Continuous Integration, Agile Methodology, Secure Coding, Application Security, Continuous Deployment, Security Software, Agile Software Development, Automation, Real Time Data, Control Systems
Beginner · Course · 1 - 3 Months

LearnQuest
Skills you'll gain: Image Analysis, Exploratory Data Analysis, Time Series Analysis and Forecasting, Data Wrangling, Model Evaluation, Data Preprocessing, Operations Research, Model Training, NumPy, Demand Planning, Feature Engineering, Supervised Learning, Inventory Management System, Supply Chain, Applied Machine Learning, Trend Analysis, Data Visualization, Machine Learning, Data Science, Data Analysis
★ 3.4 (86) · Intermediate · Specialization · 3 - 6 Months

Johns Hopkins University
Skills you'll gain: Bioinformatics, Unix Commands, grep, Biostatistics, R (Software), Exploratory Data Analysis, Statistical Analysis, Unix Shell, Unix, Data Science, Data Management, Statistical Methods, Information Management, Command-Line Interface, Statistical Hypothesis Testing, Data Structures, Big Data, Molecular Biology, R Programming, Python Programming
★ 4.5 (6.8K) · Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Google Cloud Platform, Amazon Web Services, AWS Identity and Access Management (IAM), Virtual Private Networks (VPN), Identity and Access Management, Cloud Infrastructure, Cloud Computing Architecture, Cloud Computing, Virtual Networking, Network Routing, Firewall, Network Security, Border Gateway Protocol, Wide Area Networks, User Accounts, Load Balancing
★ 4.7 (1.7K) · Intermediate · Course · 1 - 4 Weeks

Amazon Web Services
Skills you'll gain: AWS Identity and Access Management (IAM), Amazon CloudWatch, Amazon Web Services, Serverless Computing, Identity and Access Management, Amazon DynamoDB, Amazon Elastic Compute Cloud, Cloud Computing, Amazon S3, Scalability, Cloud Infrastructure, Event-Driven Programming, Data Migration, Cloud Security, Cloud Storage, Cloud Management, Solution Architecture, Cloud Computing Architecture, Cloud Services, Cloud Solutions
★ 4.8 (6.8K) · Beginner · Specialization · 1 - 3 Months
Starweaver
Skills you'll gain: Cyber Threat Intelligence, Intelligence Collection and Analysis, Cyber Threat Hunting, MITRE ATT&CK Framework, Threat Modeling, Threat Detection, Threat Management, AI Security, Responsible AI, Malware Protection, Cybersecurity, Requirements Analysis, Technical Communication
Intermediate · Course · 1 - 4 Weeks