This document discusses the dark side of web security, including automated threats from bots and attackers. It notes that traditional security like flossing is difficult to measure effectiveness. It outlines the OWASP top 10 vulnerabilities and automated threats attackers use. While captchas are meant to stop bots, services have made bypassing captchas easier. If a site has value like money, data, or content, there is value in exploiting it. Detection of attacks is difficult as attackers use many proxies and fingerprints to avoid detection. Patching is not enough, and spikes in traffic from many IPs could indicate an attack.