CompTIA Security+ courses can help you learn network security, risk management, cryptography, and compliance. You can build skills in threat analysis, incident response, and security architecture. Many courses introduce tools like firewalls, intrusion detection systems, and security information and event management (SIEM) software, demonstrating how these tools are used to protect systems and data from cyber threats.

John Wiley & Sons
Skills you'll gain: Database Administration, Database Architecture and Administration, Database Systems, Database Management, Database Management Systems, Databases, Operational Databases, Data Maintenance, Database Design, Data Management, Data Integrity, Data Security, SQL, Data Validation, System Monitoring, Security Controls, Performance Tuning, Query Languages, Disaster Recovery, Data Science
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Mobile Security, Desktop Support, Microsoft Windows, Problem Management, Operating System Administration, Technical Support and Services, Security Management, Android (Operating System), Computer Security Incident Management, Debugging, Threat Management, Security Software, Apple iOS, Application Performance Management, Malware Protection, Performance Tuning
Intermediate · Course · 1 - 4 Weeks

Total Seminars
Skills you'll gain: Package and Software Management, Network Troubleshooting, Linux Administration, Shell Script, OS Process Management, Linux, Unix Shell, Virtualization, Bash (Scripting Language), Virtualization and Virtual Machines, Linux Commands, Linux Servers, Virtual Machines, Network Support, Unix Commands, Operating System Administration, Unix, User Accounts, Network Routing, Process Management
Intermediate · Course · 1 - 3 Months

Total Seminars
Skills you'll gain: Responsible AI, Shell Script, Bash (Scripting Language), Unix Shell, Linux Administration, Version Control, Ansible, Configuration Management, Linux Commands, Network Troubleshooting, Git (Version Control System), Hardware Troubleshooting, Linux Servers, Linux, System Configuration, Software Configuration Management, Devops Tools, Scripting, Automation, Python Programming
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Public Key Infrastructure, IT Security Architecture, Cloud Security, Hardening, Security Engineering, Cryptographic Protocols, Infrastructure Security, Information Systems Security, System Configuration, Cryptography, Endpoint Security, Key Management, Encryption, Mobile Security
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Cyber Threat Intelligence, Threat Modeling, Zero Trust Network Access, Security Management, DevSecOps, Incident Response, Threat Detection, Identity and Access Management, Application Security, Cybersecurity, Data Security, Microsoft Azure, Cyber Security Strategy, Security Strategy, IT Security Architecture, Cloud Security
Advanced · Course · 1 - 3 Months

Skills you'll gain: Infrastructure as Code (IaC), Endpoint Security, Vulnerability Management, Cloud Computing Architecture, Cloud Security, Vulnerability Assessments, Cyber Threat Intelligence, Vulnerability Scanning, Cyber Attacks, Network Architecture, Threat Management, Cloud Infrastructure, Cloud Standards, Zero Trust Network Access, Cybersecurity, IT Security Architecture, Network Security, Cloud Deployment, Infrastructure Security, AI Security
★ 4.7 (6) · Intermediate · Course · 1 - 3 Months

Skills you'll gain: Remote Access Systems, Network Troubleshooting, Network Administration, Virtual Private Networks (VPN), Hardening, Network Support, TCP/IP, Cybersecurity, Human Factors (Security), Technical Support and Services, Computer Networking, Hardware Troubleshooting, Network Performance Management, Command-Line Interface, Wireless Networks, Networking Hardware
★ 4.6 (7) · Advanced · Course · 1 - 4 Weeks

Skills you'll gain: Endpoint Security, Endpoint Detection and Response, Multi-Factor Authentication, Data Loss Prevention, Network Security, Patch Management, System Configuration, Network Monitoring, Data Security, Authentications, Malware Protection, Mobile Security, Authorization (Computing), Identity and Access Management, Enterprise Application Management
Intermediate · Course · 1 - 4 Weeks

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

Skills you'll gain: Network Troubleshooting, Distributed Denial-Of-Service (DDoS) Attacks, Hardening, Network Protocols, Network Performance Management, Authentications, Identity and Access Management, Encryption, Hardware Troubleshooting, Virtual Local Area Network (VLAN), Multi-Factor Authentication, Key Management, Wireless Networks
★ 4.8 (6) · Intermediate · Course · 1 - 3 Months

Cisco Learning and Certifications
Skills you'll gain: Network Security, Vulnerability Assessments, Infrastructure Security, Network Infrastructure, Threat Modeling, Network Monitoring, Distributed Denial-Of-Service (DDoS) Attacks, IT Security Architecture, Firewall, Authorization (Computing), Cybersecurity, Role-Based Access Control (RBAC), TCP/IP, Network Protocols, Identity and Access Management, Security Controls, Malware Protection, Network Model, Exploitation techniques, Enterprise Security
★ 4.8 (741) · Mixed · Course · 1 - 4 Weeks