Professor's RSA Competitors

Udemy was founded in 2010 with a mission to improve lives through learning by democratizing access to skills development. Today, we've grown into one of the world's largest AI Powered Skills Acceleration Platform, with nearly 85 million learners worldwide and over 1.1 billion course enrollments. Our global skills ecosystem connects learners with 85,000 expert instructors across more than 250,000 courses in 77 languages. From programming and data science to business strategy and creative skills, we offer hands-on learning experiences designed for immediate real-world application. Udemy serves both individual learners advancing their careers and organizations building future-ready teams. Our AI-enhanced platform personalizes learning journeys, helping professionals master in-demand skills in today's rapidly evolving, skills-first economy. With over 17,000 business customers and growing demand for AI literacy across industries, we're transforming how the world learns and works. Whether you're an individual looking to upskill, an instructor ready to share expertise with millions, or an enterprise building workforce agility, Udemy is where skills happen.

SANS is the most trusted and by far the largest source for information and cybersecurity training and certification in the world. It also develops, maintains, and makes available at no cost, the largest collection of research documents about various aspects of information security, and it operates the Internet's early warning system - Internet Storm Center.

KnowBe4 empowers the modern workforce to make smarter security decisions every day. Trusted by more than 70,000 organizations worldwide, KnowBe4 is the pioneer of digital workforce security, securing both AI agents and humans. The KnowBe4 Platform provides attack simulation and training, collaboration security, and agent security powered by AIDA (Artificial Intelligence Defense Agents) and a proprietary Risk Score. The platform leverages 15-years of behavioral data to combat advanced threats including social engineering, prompt injection, and shadow AI. By securing humans and agents, KnowBe4 leads the industry in workforce trust and defense.