Nest still sends me a monthly summary email for account that’s maybe nine years stale, despite my repeated attempts to get them to stop. Their customer support says there’s “nothing they can do”.

The Nest smoke alarms at a friend’s house say (as in play over the speakers a voice saying) “Remote access attempt detected” every so often while we’re sitting in the living room. At least twice a year they go off in the middle of the night (without smoke).

So I guess when you’re contacting customers who don’t want it, and your alarms wrongly sound, I would say you have a problem with your false positive rate