Mark Zuckerberg is a facing a new challenge. Facebook is making a move to further integrate Messenger, WhatsApp, and Instagram and the user data on these apps. But the reception has been less than positive.

According to the New York Times:

The services will continue to operate as stand-alone apps, but their underlying technical infrastructure will be unified, said four people involved in the effort. That will bring together three of the world’s largest messaging networks, which between them have more than 2.6 billion users, allowing people to communicate across the platforms for the first time.

The plan, which will be completed at the end of this year or early 2020, has many concerned that Facebook will only be further invading users’ privacy.

Facebook stated that they want to:

…build the best messaging experiences we can; and people want messaging to be fast, simple, reliable and private. We’re working on making more of our messaging products end-to-end encrypted and considering ways to make it easier to reach friends and family across networks.

The positive side of the update is that it will equip the apps with end-to-end encryption, which makes it nearly impossible for users’ messages to be viewed by hackers. Currently WhatsApp is the only app among the three to use end-to-end encryption by default. However, Facebook will have to tread carefully as they move forward with the integration, as many users are still feeling the sting of the Cambridge Analytica scandal.