Internet Security courses can help you learn about network security protocols, encryption techniques, and threat detection methods. You can build skills in risk assessment, incident response, and implementing security policies. Many courses introduce tools like firewalls, intrusion detection systems, and antivirus software, demonstrating how these tools are used to protect sensitive data and maintain system integrity.

Johns Hopkins University
Skills you'll gain: Intrusion Detection and Prevention, Model Evaluation, Incident Response, Threat Detection, Computer Security Incident Management, Cyber Threat Intelligence, Distributed Denial-Of-Service (DDoS) Attacks, Event Monitoring, Cybersecurity, Incident Management, Cyber Security Strategy, Threat Management, Model Training, Anomaly Detection, Continuous Monitoring, Cyber Security Policies, Security Management, System Monitoring, Network Analysis, Data Analysis
★ 4.8 (9) · Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: API Testing, Postman API Platform, OAuth, Application Programming Interface (API), Performance Testing, Security Testing, Software Testing, Test Tools, Authentications, Scenario Testing
★ 4.3 (75) · Beginner · Guided Project · Less Than 2 Hours

Microsoft
Skills you'll gain: Data Security, Cloud Security, Azure Active Directory, Microsoft Azure, Data Storage, Encryption, Cloud Storage, Microsoft SQL Servers, Authorization (Computing), Authentications, Database Management, Databases, Data Governance, Key Management, Identity and Access Management, Firewall
★ 4.5 (15) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: Model Context Protocol, Responsible AI, LangGraph, AI Integrations, AI Workflows, AI Orchestration, Agentic Workflows, LangChain, Generative AI Agents, CrewAI, OpenAI API, Agentic systems, LLM Application, Tool Calling, Case Studies, OpenAI, Governance, Compliance Management, Model Deployment, AI Security
★ 2.5 (30) · Intermediate · Specialization · 3 - 6 Months

Board Infinity
Skills you'll gain: Snowflake Schema, Performance Tuning, Data Architecture, User Accounts, Data Warehousing, SQL, Database Architecture and Administration, Database Management, Data Modeling, Data Transformation, Data Import/Export, Cloud Computing Architecture, Data Integration, Cloud-Based Integration, Role-Based Access Control (RBAC), Data Governance, Data Security
★ 3 (30) · Intermediate · Course · 1 - 4 Weeks

Johns Hopkins University
Skills you'll gain: Penetration Testing, MITRE ATT&CK Framework, Metasploit, Public Key Infrastructure, Exploit development, Exploitation techniques, Cybersecurity, Cryptography, Mobile Security, Cyber Operations, Cryptographic Protocols, Security Testing, Vulnerability Scanning, Application Security, Network Security, Operating Systems, Encryption, Hardening, Vulnerability Assessments, Computer Security
★ 4 (20) · Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Database Software, Hardware Troubleshooting, Networking Hardware, Database Theory, Database Management Systems, Computer Networking, Network Support, Network Protocols, Security Software, Cybersecurity, Encryption, Security Awareness, Computer Literacy, Browser Compatibility, Program Development, Computing Platforms, Computer Programming, System Software, Authentications, Database Management
★ 4.5 (12) · Beginner · Specialization · 1 - 3 Months

Skills you'll gain: MITRE ATT&CK Framework, Threat Modeling, Cyber Threat Intelligence, Penetration Testing, Threat Management, Threat Detection, Cyber Security Assessment, Cybersecurity, Cyber Security Strategy, Cyber Operations, Vulnerability Scanning, Cyber Attacks, Computer Security, Vulnerability Assessments, Security Strategy, Cyber Security Policies, Network Security, Network Analysis, Network Protocols
★ 4.8 (16) · Intermediate · Course · 1 - 4 Weeks

University of Colorado System
Skills you'll gain: Cryptography, Data Encryption Standard, Encryption, Advanced Encryption Standard (AES), Cryptographic Protocols, Application Security, Key Management, Public Key Cryptography Standards (PKCS), Secure Coding, Web Development, Email Security, PHP (Scripting Language), Authentications, Intrusion Detection and Prevention, Data Integrity, Algorithms, Command-Line Interface
★ 4.5 (101) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Open Web Application Security Project (OWASP), SonarQube, Threat Modeling, Secure Coding, Application Security, Security Testing, DevSecOps, Code Review, Maintainability, Vulnerability Scanning, Software Quality (SQA/SQC), Risk Mitigation, Software Quality Assurance, MITRE ATT&CK Framework, Cyber Security Assessment, Vulnerability Assessments, Software Technical Review, Continuous Integration, Vulnerability Management, Cyber Attacks
Intermediate · Specialization · 1 - 3 Months

DeepLearning.AI
Skills you'll gain: Data Store, Data Storage, Data Storage Technologies, Query Languages, Vector Databases, Data Lakes, File Systems, Database Systems, SQL, Databases, Data Architecture, Cloud Storage, Data Warehousing, Amazon Web Services, Performance Tuning
★ 4.6 (88) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Databricks, Apache Spark, Microsoft Azure, Data Integration, Data Lakes, File Systems, Data Processing, Big Data, File Management, Cloud Platforms, Cloud Storage
★ 4.3 (41) · Beginner · Course · 1 - 3 Months