Review calendar sharing, public access and private links

Review the selected calendar and its audiences

On a computer, Google's guide uses My calendars > the calendar's More menu > Settings and sharing. Under Shared with, review the named people or groups and their access level. The documented Remove control stops sharing with a selected person or group. Confirm that it is the intended calendar and that the account has authority to manage it. Google: calendar audiences, permissions and administrator roles

1. Review work or school sharing separately. The guide says administrators can decide whether sharing is allowed and can have special permissions to see event details. A personal sharing choice does not override every organizational role. Google: calendar audiences, permissions and administrator roles

Review public access as a separate setting

The public-calendar guide documents clearing Make available to public under Access permissions for events. It says the change usually takes minutes but may take up to four hours. Confirm the resulting setting rather than assuming an immediate change everywhere. Check the selected calendar when creating later events. Google: public calendar access and stopping public sharing

Check event visibility and the whole recurring series

Google's desktop event route is open event > Edit event > Default visibility, then select the intended visibility and save. Private still has role and guest/resource exceptions. The guide says a recurring series has one visibility setting, so changing one instance's visibility affects the series. Review that scope before saving. Google: individual event visibility and exceptions

Treat the private iCal address as a private access link

The sync guide places the Secret Address under Settings > the selected calendar > Integrate calendar. If it was shared accidentally, Google documents Reset to invalidate the old address and create a new one. Legitimate applications using the old feed may need the new address. Do not post that link in a public request or screenshot. Google: private iCal addresses and reset scope

Review existing calendar copies and integrations

Google's export help describes .ics files and ZIP collections on a computer. Keep a needed export private and check where any existing copy was stored or imported. Reviewing a live calendar's audience is a different task from reviewing those files. The export instructions do not promise that a sharing change erases other copies. Google: calendar copies and export permissions

Choose the display or ownership action that is intended

Google describes hiding as temporary, unsubscribing as a non-owner's way to leave a calendar, and deleting a secondary calendar as the owner's action that removes it for everyone. If the aim is to stop someone else seeing a schedule, review sharing permissions rather than merely hiding it from the local view. Read any deletion confirmation carefully. Google: hiding, unsubscribing and calendar ownership