They could develop their own phone. Apple, the maker of the hardware, is also a stakeholder in users’ privacy. They are not obligated to assist Facebook in the

They could develop their own phone. Apple, the maker of the hardware, is also a stakeholder in users’ privacy. They are not obligated to assist Facebook in the undermining of users’ privacy. If their stance on privacy does not meet Facebook’s requirements, Facebook is free to develop their own phone to run their own apps.