Data security courses can help you learn encryption techniques, risk assessment strategies, incident response planning, and compliance regulations. You can build skills in vulnerability management, threat detection, and secure coding practices. Many courses introduce tools like firewalls, intrusion detection systems, and data loss prevention software, demonstrating how these skills are applied to protect sensitive information and maintain system integrity.

University of London
Skills you'll gain: Linux, Network Security, Cyber Governance, IT Security Architecture, OSI Models, Incident Management, Computer Security Incident Management, Incident Response, Security Management, Linux Commands, TCP/IP, Computer Systems, Threat Modeling, Command-Line Interface, Computer Networking, Cybersecurity, Network Protocols, Human Factors (Security), Cyber Threat Intelligence, Cyber Attacks
★ 4.8 (215) · Beginner · Specialization · 3 - 6 Months
Skills you'll gain: Vulnerability Scanning, Digital Forensics, Linux, Linux Administration, Network Security, Authorization (Computing), Role-Based Access Control (RBAC), Identity and Access Management, Linux Commands, Network Monitoring, System Monitoring, Hardening, Information Systems Security, Security Controls, Wireless Networks, Penetration Testing, Cybersecurity, Containerization, File Management, Incident Response
★ 5 (7) · Beginner · Course · 1 - 4 Weeks

University of Colorado System
Skills you'll gain: Cryptography, Public Key Infrastructure, Cybersecurity, Information Systems Security, Data Security, Firewall, Cyber Attacks, Data Encryption Standard, Penetration Testing, Network Security, Information Assurance, Encryption, Exploit development, Advanced Encryption Standard (AES), Cryptographic Protocols, Intrusion Detection and Prevention, Metasploit, Application Security, Security Testing, Cyber Security Policies
★ 4 (603) · Intermediate · Specialization · 3 - 6 Months

LearnQuest
Skills you'll gain: Event Monitoring, Security Strategy, General Networking, Network Architecture, Systems Integration, Incident Response, Data Integration, Threat Management, Cybersecurity, Security Management, Networking Hardware, Information Technology, Computer Networking, Network Security, Threat Detection, Cyber Security Policies, Data Governance, Data Management, Command-Line Interface, Application Deployment
Beginner · Specialization · 1 - 3 Months

Skills you'll gain: Hardware Troubleshooting, Computer Security Awareness Training, Information Technology, Security Software, Malware Protection, Data Security, Technical Support and Services, Cybersecurity, Encryption, Authentications, Patch Management, Technical Support, Firewall, Data Integrity
Beginner · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: Model Deployment, Multi-Cloud, Cloud Security, AI Security, MLOps (Machine Learning Operations), DevSecOps, Cloud Management, Security Architecture Review, Microservices, Site Reliability Engineering, Security Controls, CI/CD, System Monitoring, Infrastructure as Code (IaC), Compliance Management, Automation, Kubernetes, Docker (Software), Incident Management, Performance Analysis
Intermediate · Specialization · 3 - 6 Months

University of Colorado Boulder
Skills you'll gain: Real-Time Operating Systems, Internet Of Things, Security Engineering, Information Systems Security, Wireless Networks, Infrastructure Security, General Networking, Cybersecurity, IBM Cloud, Cloud Platforms, Cryptography, Telecommunications, Network Protocols, Market Opportunities, Automation, Emerging Technologies, Embedded Systems, Cloud Deployment, Software-Defined Networking, Market Intelligence
★ 4.7 (630) · Intermediate · Course · 1 - 3 Months

Amazon Web Services
Skills you'll gain: Data-Driven Decision-Making, Data Lakes, Data Storage Technologies, Analytics, Data Architecture, Data Warehousing, Data Management, Data Analysis, Big Data, Data Storage, Amazon Web Services, Machine Learning
★ 4.3 (74) · Mixed · Course · 1 - 4 Weeks

Amazon Web Services
Skills you'll gain: Cloud Security, Encryption, Amazon Web Services, Data Security, Cryptography, Security Controls, Cryptographic Protocols
★ 4.8 (57) · Mixed · Course · 1 - 4 Weeks

Coursera
Skills you'll gain: AI Security, Threat Modeling, Open Web Application Security Project (OWASP), Security Testing, Retrieval-Augmented Generation, Software Architecture, API Design, Test Automation, Vulnerability Management, Agentic systems, Systems Design, Model Evaluation, Test Driven Development (TDD), CI/CD, Python Programming, Continuous Deployment, Dependency Analysis, Large Language Modeling, Machine Learning, Performance Analysis
Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Microsoft Azure, Distributed Denial-Of-Service (DDoS) Attacks, Load Balancing, Network Security, Infrastructure Security, Firewall, Network Administration, Key Management, IT Security Architecture, Virtual Networking, Cloud Security, Infrastructure As A Service (IaaS), Cloud Computing Architecture, Cloud Infrastructure, Network Infrastructure, Virtual Private Networks (VPN), Network Architecture, Security Controls, General Networking, Network Planning And Design
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Linux Administration, Linux Servers, Linux, Operating System Administration, Bash (Scripting Language), Linux Commands, Hardening, Systems Administration, Infrastructure as Code (IaC), Shell Script, Network Troubleshooting, System Monitoring, Software Configuration Management, Security Controls, Hardware Troubleshooting, Event Monitoring, Configuration Management, Continuous Monitoring, Firewall, Automation
Advanced · Course · 1 - 4 Weeks