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.

Dartmouth College
Skills you'll gain: Computer Programming Tools, C (Programming Language), Programming Principles, Embedded Systems, Software Development Tools, Computer Engineering, Algorithms, Data Structures, Computer Programming, Computational Logic
★ 4.7 (106) · Beginner · Course · 1 - 3 Months

Skills you'll gain: Penetration Testing, Security Testing, Hardening, Test Script Development, Brute-force attacks, Business Logic, Cloud Security, Network Analysis, Programming Principles, API Testing, General Data Protection Regulation (GDPR), Cloud Computing, Wireless Networks, Data Persistence, Application Programming Interface (API), Data Security
★ 4.7 (22) · Intermediate · Specialization · 1 - 3 Months

Coursera
Skills you'll gain: Selenium (Software), Test Script Development, Test Automation, Debugging, Scripting, Automation, Web Scraping, Software Testing, Cascading Style Sheets (CSS)
★ 4.7 (33) · Beginner · Course · 1 - 4 Weeks

Advancing Women in Tech
Skills you'll gain: Amazon Web Services, Cloud Computing, Cloud Management, Cloud Services, Amazon S3, Cloud Platforms, Public Cloud, Amazon Elastic Compute Cloud, Cloud Computing Architecture, AWS Identity and Access Management (IAM), Technical Product Management, AWS CloudFormation, AWS Kinesis, Amazon Redshift, Cloud Security, Software Architecture, Amazon CloudWatch, Cloud Storage, Serverless Computing, Product Management
★ 4.5 (92) · Beginner · Specialization · 1 - 3 Months

Skills you'll gain: Distributed Denial-Of-Service (DDoS) Attacks, Azure Active Directory, Microsoft Azure, Cyber Security Policies, Cloud Security, Firewall, Cyber Attacks, Cybersecurity, Malware Protection, Cyber Threat Intelligence, Identity and Access Management, Network Security, Endpoint Detection and Response, Threat Management, Endpoint Security, Security Information and Event Management (SIEM), Threat Detection, Security Controls, Intrusion Detection and Prevention, Event Management
★ 5 (7) · Beginner · Course · 1 - 4 Weeks

Packt
Skills you'll gain: Incident Response, Threat Modeling, Vulnerability Scanning, Vulnerability Management, Vulnerability Assessments, Threat Detection, Risk Management, Cybersecurity, Computer Security Incident Management, Secure Coding, Cyber Security Assessment, Incident Management, Security Testing, MITRE ATT&CK Framework, Systems Development Life Cycle, Cyber Governance, Intrusion Detection and Prevention, Cyber Threat Intelligence, Cyber Attacks, Network Infrastructure
★ 4.6 (17) · Intermediate · Specialization · 1 - 4 Weeks

Infosec
Skills you'll gain: Penetration Testing, Linux Commands, Command-Line Interface, Security Testing, Linux, Cybersecurity, Vulnerability Scanning, Operating Systems, Exploitation techniques, Microsoft Windows, File Systems, Mac OS
★ 4.6 (98) · Mixed · Course · 1 - 4 Weeks

Dartmouth College
Skills you'll gain: Digital Transformation, Customer experience strategy (CX), Business Transformation, Data-Driven Decision-Making, Internet Of Things, Cloud Computing, Automation, Cloud Storage, Technology Strategies, Data Ethics, Cloud Infrastructure, Customer Insights, AI Personalization, Business Process Automation, Emerging Technologies, Responsible AI, Business Modeling, Cybersecurity, Operational Efficiency, Law, Regulation, and Compliance
★ 4.8 (24) · Beginner · Course · 1 - 3 Months

University of California, Irvine
Skills you'll gain: Salesforce, Salesforce Development, Data Security, Data Access, Customer Relationship Management (CRM) Software, Security Controls, Customer Engagement, Role-Based Access Control (RBAC), Customer Service, Data Maintenance, Business Reporting, Data Management, Personalized Service, Workflow Management, Process Development, Process Design, Lead Generation, Business Process Automation, Cloud Computing, Automation
★ 4.6 (32) · Beginner · Course · 1 - 4 Weeks

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

University of Maryland, College Park
Skills you'll gain: Search Engine Marketing, Search Engine Optimization, Web Analytics and SEO, Digital Marketing, Keyword Research, Online Advertising, Return On Investment, Media Planning, Consumer Behaviour, Cross-Channel Marketing, Marketing, Digital Media Strategy, Digital Advertising, Digital Marketing Tools, Digital Marketing Campaigns, Digital Brand Strategy, Marketing Channel, Social Media Marketing, Marketing Budgets, Business Analysis
★ 4.8 (16) · Beginner · Course · 1 - 3 Months

Skills you'll gain: Load Balancing, ASP.NET, Test Driven Development (TDD), Debugging, C# (Programming Language), Software Testing, Scalability, Performance Testing, Restful API, Unit Testing, Web Development, Microservices, .NET Framework, Object-Relational Mapping, Software Architecture, Web Applications, Test Engineering, Object Oriented Design, Cloud Deployment, Distributed Computing
★ 4.7 (244) · Intermediate · Specialization · 3 - 6 Months