ChatGPT Can Now Read Your Text Messages. Check the Permission First.

OpenAI shipped an update to the ChatGPT Mac app Thursday that lets it into your Messages. It can read your texts, search back through old threads, summarize a conversation, write a reply, and send it for you. iMessage, plain SMS, RCS, all of it.

A lot of owners around here run most of their customer communication through text. Trades especially. Somebody texts you at 6:30 in the morning about a leak and you're answering from the truck before you've had coffee. So an assistant that can go dig up what a customer said three weeks ago and put a reply together is not a toy. That's a real piece of your day it's offering to take.

Then there's the permission it wants.

What it's actually asking for

To turn this on you have to give the ChatGPT app Full Disk Access on your Mac, plus permission to see your contact names and to run automation. Full Disk Access is exactly what it sounds like. It's a system level switch that hands an app the run of your machine. Not the Messages folder. The machine.

OpenAI's side of it is reasonable and worth saying out loud. The thing runs locally on your Mac and talks to Messages using tools Apple already built into the operating system. It doesn't build a searchable copy of everything you've ever texted. It won't send anything until you've read the draft and approved it. It's also Apple Silicon only, desktop app only, so nothing happens on the web version or on your phone.

All of that is fine. Full Disk Access is still Full Disk Access. If your Mac has client files on it, tax returns, employee paperwork, scans of stuff you'd never email anybody, you're granting against the whole drive, not against the texts.

The question I'd ask before flipping it on

Whose Mac is it.

If it's your own laptop and the texts on it are your texts, this is an easy call. Turn it on, run it for a week, see if it actually saves you time or if it's just one more thing to babysit.

If it's a machine in the back office that four people use, slow way down. Full Disk Access on a shared computer means whoever happens to be sitting at it has an AI that will read what's on that drive and text people as you. Same deal if you've got a front desk Mac that doubles as the business phone.

And if the texts themselves are protected, medical, legal, insurance, anything where confidentiality is part of the job, that's a conversation with whoever handles your compliance. Not a Thursday afternoon experiment.

If you want to try it anyway

1: Put it on one machine first, yours, not the shared one. 2: Before you flip the switch, go look at what's actually sitting on that drive. Most people have no idea. 3: Leave the approve-before-send step alone and don't go hunting for a way around it. 4: Tell anybody else who works your phone that it's on, because a customer getting a reply that doesn't sound like you is worse than getting a slow reply.

One more thing. If you do let it draft, read the draft like a customer would, not like the person who already knows what they meant. It writes clean and polite and slightly too smooth, and people who've been texting with you for six years notice when your voice changes.

Why this one's worth two minutes of your time

Because it's the pattern, and the pattern is going to keep showing up. The AI companies have squeezed about everything they can out of the chat box, so now they're reaching into the apps you already live in. Messages this week. Something else next month. Every time, it's a genuinely useful feature bolted to a permission that's wider than the feature needs.

You don't have to say no to any of it. I use plenty of this stuff. Just read the permission screen before you click through it, because that screen is where the whole decision actually happens, and almost nobody reads it.