Discover easy-to-implement security measures that can significantly improve your web service's defenses in this 32-minute JSConf talk by Marcus Bointon. Learn about common vulnerabilities often uncovered during penetration tests across various levels of the deployment stack. Explore quick and simple fixes that can be applied universally, regardless of programming language, to address these issues efficiently. By implementing these solutions, free up valuable penetration tester resources to focus on more complex security challenges. Gain insights from Bointon, the maintainer of PHPMailer and a top contributor on StackOverflow for email-related topics, as he shares his expertise in identifying and resolving common security pitfalls.