To see which apps can read your calendars, open System Settings › Privacy & Security › Calendars, and turn off any app you no longer use. For an app you keep, Options lets you choose full access or only letting it add events.
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Where to find it
System Settings › Privacy & Security › Calendars
Calendars permission gives an app access to your events: titles, times, locations, attendees and notes. That can reveal your schedule, your meetings and who you meet. In System Settings, Options lets you give an allowed app full access or only let it add events.
Choose Apple menu > System Settings, then click Privacy & Security in the sidebar.
Each app that asked has a switch. For an allowed app, Options shows whether it has full access or can only add events.
If you switched calendar or meeting apps, the old one may still have access.
Or keep it on and use Options to limit the app to adding events.
Some apps add a subscribed calendar instead. In the Calendar app, open Settings > Accounts and remove any you don't recognize.
CoreLock's free Privacy report covers Screen Recording, Accessibility, Full Disk Access, Input Monitoring, camera and microphone. For Calendars, use System Settings, where Options lets you limit an app to adding events.
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With full access, yes: titles, locations, attendees and notes. If you keep meeting codes or agendas in event notes, any app with full calendar access can read them.
They ask for it to show upcoming meetings and a join button. You can still join from the invite without it, so it's convenience against privacy.
Yes. In System Settings > Privacy & Security > Calendars, click Options next to an allowed app and choose to only allow it to add events.
The Privacy report and the scan are free, with no account, on macOS 13 or later.
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Count the apps with Screen Recording, Accessibility, Full Disk Access, Microphone and Camera access in System Settings, and get a free 0–100 estimate in your browser.
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