Google Calendar, a widely used app, has become a target for hackers and scammers. They use fake event invites to trick users into revealing personal details, which can be used for malicious purposes. The majority of Google Calendar scams involve links to fraudulent websites, which can be embedded in event descriptions or emails purporting to be Google Calendar invites. To protect against these scams, users should be wary of suspicious links and keep their Google Calendar app and browser up to date. Additionally, users can check the origin of an email by looking at the full header information, and ensure that the sender field reads 'calendar-notification@google.com' if it's a genuine Google Calendar invite. It's also essential to keep your Google account protected with two-factor authentication and regularly check the apps and services connected to your Google account.