Courses from 1000+ universities
17 years ago, Krishna Kumar started offering free PMP prep online. Today, it’s a leading digital upskilling platform that helps millions upskill in AI, cybersecurity, data science, and more.
600 Free Google Certifications
Fundamentals of Neuroscience, Part 1: The Electrical Properties of the Neuron
Organic Chemistry 1
Mountains 101
Organize and share your learning with Class Central Lists.
View our Lists Showcase
Discover actionable strategies to dramatically enhance your company's security posture without significant financial investment. Learn from distilled insights and lessons from DevSecOps and modern AppSec experts.
Insightful keynote examining the progress and challenges in Information Security over the past decade, highlighting achievements and persistent issues facing professionals in the field.
Explore the modern 2FA landscape with data-driven analysis, comparing security strength and user experience of various authentication methods like SMS, soft tokens, push, and WebAuthn.
Practical advice for security professionals on improving technical writing skills, from starting to finishing, with tools and tips for presenting professional work.
Explore privacy challenges in ML/AI applications and learn about a framework that integrates data security with machine learning technologies to address potential nightmares.
Explore MOSE, a post-exploitation tool for leveraging configuration management servers to compromise associated agents en masse, simplifying large-scale system takeovers.
Explore offensive and defensive scenarios in Kubernetes security, and learn about k-rail, a tool for mitigating risks and managing configurations securely at scale.
Panel discussion with security team leads sharing insights on building and scaling security programs, exploring successes, failures, and practical strategies in DevSecOps implementation.
Comprehensive overview of DevSecOps best practices, tools, and methodologies. Distills insights from industry leaders to help AppSec teams improve security integration, automation, and culture.
Learn to build a cost-effective mobile security workstation using affordable parts and open-source software. Discover how to create a powerful system capable of running Kali Linux or Parrot OS for ethical hacking and network testing.
Discover a framework for building a robust cybersecurity training program that empowers analysts with hands-on skills in incident response, forensics, and threat hunting.
Explore alternative approaches to Active Directory security, focusing on actionable steps for complex multi-domain environments beyond traditional defensive products.
Demonstration of chaining vulnerabilities to remotely exploit a Lenovo NAS device, showcasing command injection, XSS, and CSRF techniques for full system compromise.
Develop effective security exercises using MITRE ATT&CK framework. Learn to create, run, and score drills that turn threat intelligence into practiced action for improved incident response.
Explore how Natural Language Processing and Word2Vec can organize unstructured cybersecurity intelligence, making it actionable by mapping to frameworks like MITRE ATT&CK.
Get personalized course recommendations, track subjects and courses with reminders, and more.