An apparently huge number of iOS and macOS users received calendar invite spam starting late last week. If you began seeing an invitation to an event in your calendar listings for Ugg Boots, Ray-Ban sunglasses, and other products, it’s because spammers took advantage of a long-available feature in iCloud that extracts invites from email and presents them as notifications in calendar apps.
The ones I received were set as a repeating event, making the invitation show up on every day of my calendar. Some users started receiving this spam weeks ago, but the distribution accelerated only around November 23 or 24. I’ve found scattered references as far back as August.
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