In-app browsers can pose significant security risks to businesses, with their tendency to track data a primary concern. This was highlighted in recent research which examined how browsers within apps like Facebook, Instagram and TikTok can be a data privacy risk for iOS users. Researcher Felix Krause detailed how popular in-app browsers inject JavaScript code into third-party websites, granting host apps the ability to track certain interactions, including form inputs like passwords and addresses along with image/link clicks.
