Is Machine Learning Cybersecurity's Latest Pipe Dream?

A recurring claim at security conferences is that "security is a big data, machine learning (ML), and artificial intelligence (AI) problem." This is unfortunately wildly optimistic, and wrong in general. As this article explains, while certain security problems can be addressed by ML/AI algorithms, in general the problem of detecting a malicious actor amidst the vast trove of information collected by most organizations is not one of them.