Related to this bug, some time ago I started getting spam on my Google Calendar. Not sure if Google ever fixed it, but basically Google would automatically add events to your calendar when you got an invite in your email. Honestly, it's a nice feature; saves a couple clicks every time I get an invite. The bug is that it applied even if the email was spam. There was no workaround, other than disabling the feature comp…
It's used not just by spammers, but by sales reps, too. Dell recently did this to about half a dozen people on my team. 'Q2 Budget Review', which sounds official, but is really a Dell rep trying to sell you junk that magically pops up on your calendar _even if you mark their message as spam_. Dirty way to get by executive assistants, too.
If you put this shit on my calendar, I will never purchase a product from you. I will additionally, at my own discretion, use it as proof that you have had a data breach and are unable to keep your accounts safe since no real company would really do this on purpose.