Many, if not most web applications use some kind of third party JavaScript. These scripts provide useful functionality and services such as analytics, social media integration, data services, user interface features, chat capabilities and so on, however they also present a substantial risk to the confidentiality and integrity of your application and the data contained within. This is not a new topic in application security, however many companies still fail to consider or fully understand the security implications of adding code from third parties to their applications.

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