macOS 27.3 is bringing a major shift to how you manage privacy on your Mac. With AI agents becoming much more common and often asking to read your personal files, Apple is stepping in to stop them from quietly grabbing your information. The upcoming update changes the rules for Full Disk Access, making sure you know what you are handing over before an AI tool reads your private chat logs.
Users must manually drag app icons to grant disk permissions
At the moment, giving an app permission to read your entire drive is fairly simple. If an application tries to open a protected file and gets denied, the system automatically logs it in your settings. You then just go in and click a simple toggle switch to let it through.
That automatic logging loophole is going away in the macOS 27 update cycle, specifically in version 27.3. Because AI tools can read and copy your mail, browsing history, and text messages, the company wants to make sure you are taking a very deliberate step to allow that. Instead of flipping a switch, you will have to manually drag the app icon from your Finder directly into the Full Disk Access pane. This stops software makers from using automated scripts to push you through the setup process.
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New private folders will isolate chat data from AI readers
Giving an agent the keys to your entire drive is a massive privacy risk, but some tools actually need to read specific files to work well. To fix this all-or-nothing problem, the latest macOS 27.3 public beta shows signs of a new experimental feature called Private Folders.
This setup lets you limit an AI agent so it can only see specific directories. For example, you could let a tool read a specific work folder without exposing your iMessage database or your personal photos. As noted in a recent developer update, the goal is to make sure users understand the risks before handing over their personal history.
This shift shows that privacy on the Mac is moving from broad assumptions to clear choices. You will no longer hand over your whole digital life by accident just because you wanted an AI tool to summarize a meeting.
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