Homeland Security Courses

Inside the Linux Security Modules

Explore Linux Security Modules (LSM), including kernel architecture, security hooks, data structures, and integration with the Linux kernel.

• YouTube
• 52 minutes
• Self-Paced
• Conference Talk

Introduction to Embedded Linux Security

An introduction to securing embedded Linux devices through threat modeling, secure boot, code protection, access controls, sandboxing, updates, and network defense.

• YouTube
• 51 minutes
• Self-Paced
• Conference Talk

How to Write a Linux Security Module

Learn to design Linux Security Modules using kernel hooks and security blobs, with filesystem, process, networking, and audit interfaces.

• YouTube
• 1 hour 35 minutes
• Self-Paced
• Conference Talk

Device Security in IoT

Explore IoT device security principles, secure boot, roots of trust, authentication, firmware updates, and platform security architecture through Trusted Firmware-M and PSA.

• YouTube
• 43 minutes
• Self-Paced
• Conference Talk

Enhance IoT Solution Security by Using Azure Defender for IoT

Learn how to secure IoT solutions end to end with threat modeling, defense-in-depth, and Azure Defender for IoT.

• YouTube
• 1 hour 23 minutes
• Self-Paced
• Free Video

How Secure Is Your Database? Hacking Postgres with Hathi - Network Security and Authentication

Learn to use Hathi password spraying to uncover insecure PostgreSQL configurations and strengthen database network security.

• YouTube
• 30 minutes
• Self-Paced
• Free Video

Azure SQL Network Security and Connectivity - Episode 4

Learn how Azure SQL Database connectivity works and secure it with firewall rules, VNet integration, private endpoints, and outbound controls.

• YouTube
• 56 minutes
• Self-Paced
• Free Video

Azure SQL Security: The What, Why and How of Securing Your Data - Data Exposed Live

An overview of Azure SQL’s security pillars, from authentication and data protection to network security, governance, and threat detection.

• YouTube
• 59 minutes
• Self-Paced
• Free Video

HackerSploit

Auditing Docker Security

Audit Docker security with CIS benchmarks and tools to identify insecure configurations across the host, daemon, containers, and registries.

• YouTube
• 39 minutes
• Self-Paced
• Free Video

Jeremy's IT Lab

CCNA - Wireless Security - CCNA 200-301 Complete Course

An overview of wireless network security covering authentication, encryption, integrity, and WPA protocols for CCNA exam preparation.

• YouTube
• 34 minutes
• Self-Paced
• Free Video

Jeremy's IT Lab

CCNA - Port Security - CCNA 200-301 Complete Course

Configure Cisco switch port security to control allowed MAC addresses, handle violations, recover err-disabled interfaces, and use sticky secure MAC learning.

• YouTube
• 34 minutes
• Self-Paced
• Free Video

Jeremy's IT Lab

CCNA Security Fundamentals

An introductory CCNA lesson on enterprise security fundamentals, from the CIA triad and common attacks to MFA, certificates, and AAA.

• YouTube
• 39 minutes
• Self-Paced
• Free Video

John Hammond

OSED Review - Offensive Security Exploit Developer

A practitioner’s review of OSED, covering Windows user-mode exploit development, exam preparation, shellcoding, ROP chains, reverse engineering, and bypassing DEP and ASLR.

• YouTube
• 59 minutes
• Self-Paced
• Free Video

John Hammond

Offensive Security Experienced Penetration Tester Review

A firsthand review of OSEP and PEN-300, covering advanced evasion, exam preparation, structured notes, reporting, and lessons from the certification experience.

• YouTube
• 32 minutes
• Self-Paced
• Free Video

Information Systems Security

An introduction to information security through threats, vulnerabilities, and controls.

• YouTube
• 30 minutes
• Self-Paced
• Free Video