A limited set of WhatsApp’s user data, including phone numbers, will now be shared with Facebook, which acquired the company in 2014. By sharing this data, WhatsApp says user security and privacy remains intact, but it allows Facebook to improve its ads and deliver better friend suggestions.

WhatsApp’s ad-free business model will remain, though it does want to expand what it’s capable of, which requires an updated privacy policy. For example, it would like to implement a way for businesses (e.g. banks) to contact customers. Users will be allowed to “manage these communications.”