Most security cameras aren't monitored 24/7. It's just not practical. I'm sure they would have gone back and checked the tapes eventually, but as it happens they caught him before reaching that point.
Detect door opening, post the image to the slack channel.
Or don't jam the door open in the first place.
Who would be watching that slack channel with a dozen of pictures per week? Or would the bot be spamming the pics in #general?
“Visitors since we went to lunch” should be “none”
This is starting to sound more fiddly than is reasonable for inside security on a corporate office. The real failure here is just that someone left the door propped open. That's easily addressable, and as it turned out, they caught the attacker anyway.
I thought that was gonna be a trap/honeypot. They detected weird behavior so set that up to see if anyone would take bait.
They don’t need to be monitored by a person 24/7. All you need is a decent video analytics; most are even built-in IP cameras these days. A simple one that’s effective just detects motion within a zone during certain hours