KnowBe4 vs Contrast Security
Side-by-side comparison of AI visibility scores, market position, and capabilities
KnowBe4 is the world's largest security awareness training platform, delivering simulated phishing, compliance training, and human risk management to 65,000+ organizations.
About
KnowBe4 is a cybersecurity company headquartered in Tampa, Florida that operates the world's largest security awareness training and simulated phishing platform, serving over 65,000 organizations across 11 million users. Founded in 2010 by Stu Sjouwerman, the company was built on the thesis that the human element — employees who click phishing links, reuse passwords, and inadvertently install malware — represents the primary attack vector in the majority of successful breaches, and that continuous, measurable security awareness training combined with simulated phishing exercises is the most effective way to reduce this human risk. KnowBe4 went public in 2021 and was taken private by Vista Equity Partners in 2023 in a transaction valued at approximately $4.6 billion.
Contrast Security embeds security instrumentation directly into application code to enable real-time vulnerability detection and attack prevention throughout the software development lifecycle.
About
Contrast Security is a Los Altos-based application security company founded in 2014 by Arshan Dabirsiaghi and Jeff Williams that pioneered Instrumentation-based Application Security Testing (IAST) and Runtime Application Self-Protection (RASP). Unlike traditional SAST or DAST scanners that analyze code or simulate attacks externally, Contrast embeds lightweight agents directly into running applications to observe behavior in real time — catching vulnerabilities and blocking attacks with near-zero false positives.
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