Have you ever found a spam event on your Google calendar? In my case it was a court appearance in the state of New York regarding some paperwork from the Department of Social Services! I live in California, and am pretty certain I have no open court cases in New York. It was a bit creepy, and I worried about the sanctity of my Google account password (even though I use two-step verification.) But then I discovered a little-know setting in my Google Calendar account that allowed anyone that knows my Gmail address to post to my calendar! To turn this feature off, go to Calendar Settings and look for “Automatically add invitations to my calendar.” Instead of the default “Yes” setting, choose either “Yes, but don’t send event reminders unless I have responded ‘Yes’ or ‘Maybe’” or “No, only show invitations to which I have responded.” Then be sure to “SAVE” at the bottom of the settings page.