Explore the darker side of JavaScript in this provocative JSConf talk. Delve into security vulnerabilities, design flaws, and potential exploits within the language. Learn about application content hijacking, namespace emulation, and client-side database manipulation. Discover timing attacks, browser history theft techniques, and de-anonymization methods. Examine how attackers can leverage JavaScript to target internal systems and enterprise networks. Gain insights into obfuscated JavaScript and invisible malicious code. Walk away with a deeper understanding of JavaScript's potential security risks and how to mitigate them in your own applications.