Facebook announced new privacy features on Wednesday, but they aren't enough.

The changes should help current Facebook users learn more about what data Facebook has, and make it easier to delete that data. The moves were a response to reports that a third party quiz app collected data on more than 50 million Facebook users without their knowledge, then passed this data to political data analytics firm Cambridge Analytica against Facebook policy. But Facebook also owns two other highly popular applications: Instagram, with more than 800 million monthly users as of September and WhatsApp, with more than 1.5 billion monthly users as of January. The company didn't mention any changes to those apps today, and did not immediately respond to a question about whether the company was planning to update their privacy settings. And these apps can collect plenty of information, too.

Instagram

The Instagram logo Bloomberg | Getty Images

Instagram's terms of service, which haven't been updated in the app since 2013, says that it reserves the right to gather your photos, comments and "other materials" you upload. But it doesn't let you download a copy of every image you've ever uploaded, and doesn't provide any sort of information on the ads you've seen or interacted with -- in other words, it does not even offer the basic controls that Facebook has had for some years. Instagram also gathers information on websites you click while using the service, which means it knows what ads or brands you're most interested in to serve you ads it thinks you're most interested in. There's no way to turn this off on Instagram, even though Facebook says it will make this change in the core Facebook app.

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WhatsApp