A researcher has created a free and open-source tool that anyone can use to inspect what code is being injected by such browsers. The researchers did a study to discover how big corporations may track user activity using their mobile in-app browsers.
Some mobile applications use built-in browsers to allow users to quickly access third-party websites. Other apps contain a browser to load their own resources, which may be needed to accomplish certain functions.
These internal browsers might also present privacy and security risks, though. This month, researcher Felix Krause claimed in a blog post that the iOS apps for Instagram and Facebook could track everything a user did on an external website they visited using the app’s built-in browser.
Read More: New Open Source Tool Shows Code Injected Into Websites by In-App Browsers
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