On August 20, 2026, ChatGPT gained a plugin that can search a Mac user's Messages history (iMessage, SMS and RCS) once that user says yes. OpenAI says it only reads when asked. The people on the other end of those threads were never asked at all. This is what one yes does to everyone else.
Every number on this page recalculates as you move these.
Not everyone in the address book, just the people you have actually exchanged messages with.
Adoption follows an S-curve: slow at first, then most people join in the middle, then it levels off.
A group chat is exposed if any one member said yes.
The thin line is the share of people who opted in. The thick line is the share of people with at least one conversation exposed. The gap between them is the whole story.
Half of everyone exposed
90% of everyone exposed
99% of everyone exposed
What the end state looks like at the opt-in share you chose.
of all one-on-one threads are exposed. A thread only needs one side to say yes.
other people are exposed by each person who says yes.