There are nearly two billion websites live at this very moment, exposing data to potential theft and malware distribution. The Content Security Policy (CSP) is a security standard that helps prevent cross-site scripting and other code injection attacks by enforcing browser vendors' policies. Sentry supports capturing CSP violations using the standard reporting hooks, allowing users to integrate their project with the system and receive notifications when new or spike violations occur. To start, web servers should be configured to return the Content-Security-Policy HTTP header with a policy that states from which origins to permit content. The policy can then be customized to only allow certain types of content from safe sources.