While TikTok said the code’s only used for debugging, researchers also found Meta products Facebook and Instagram can track users’ in-app browser.

Krause warns that public scrutiny of in-app browser JavaScript tracking code injections on iOS is likely to encourage bad actors to upgrade their software to make such code undetectable to ...

Instagram injects Meta’s Meta Pixel JavaScript tracking code into every website that you open. It’s a library designed for website developers to track visitors on their site.

Facebook and Instagram apps can track users via their in-app browsers Tracking code can monitor interactions like clicks, screenshots and password form inputs.

According to the lawsuits, Meta has been injecting javascript tracking code into websites that users visit via the in-app browsers in Facebook and Instagram for iOS, but without user permission.

Recent reports detail how some apps inject JavaScript to track what users do in in-app browsers. Now a tool can help detect the presence of these scripts.

Krause warns that public scrutiny of in-app browser JavaScript tracking code injections on iOS is likely to encourage bad actors to upgrade their software to make such code undetectable to ...