In. Jonna Stern’s interview with Zuckerberg he talked about the security, and how they delayed it to make sure they got it right. He then went on to say there was more to do and they weren’t totally isolated yet (I can’t remember his exact wording).

I felt like he was undermining his original point. They delayed to make it better, but didn’t delay long enough to do the actual right thing he mentioned they could potentially do in the future.

When it’s pulling in data from all over the phone or computer, it’s not just the user’s data. Some of my personal data (detailed contact info, emails, etc) can be pulled in and used by Muse if someone I know installs it, without my knowledge or consent. That needs to be taken seriously, and Meta has a history of abusing this concept (uploading fully address books to find friends)