Meta

Facebook and Instagram use a custom in-app browser to track users, according to analysis

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While Apple continues to make moves when it comes to general user privacy and security, especially with iOS, there are still some areas where third-party companies can take advantage of the tools Apple has in place. For instance, a built-in web browser in apps like Facebook or Instagram, for instance, is still based on Apple's WebKit. But it sounds like Meta has still found a way to track users that use that third-party web browser instead of Safari.