• TikTok iOS subscribes to every keystroke (text inputs) happening on third party websites rendered inside the TikTok app. This can include passwords, credit card information and other sensitive user data. (keypress and keydown). We can’t know what TikTok uses the subscription for, but from a technical perspective, this is the equivalent of installing a keylogger on third party websites.
• TikTok iOS subscribes to every tap on any button, link, image or other component on websites rendered inside the TikTok app.
Krause published a report last week detailing the risks of using in-app browsers with various mobile apps. He found that while some adhere to using Apple’s Safari browser, or at least give the option, TikTok’s in-app browser does not and is able to both modify a web page and fetch metadata. TikTok responded to Forbes with a statement and acknowledged the feature but said it is for an optimal user experience.
Felix researched TikTok, Instagram, FB Messenger, Facebook (Meta), Snapchat, and Robinhood and while TikTok’s in-app browser is the only app that doesn’t offer an option to use the default browser it is not alone in other data-gathering behavior. He created the table below and the yes/none links go to screenshots of the apps and their script commands.
|App||Option to open in the default browser||Modify page||Fetch metadata||JS||Updated|
Source: KrausFX (via TechCrunch)