I’m wondering if a DDoS attack (or similar) is perhaps the greatest risk (perhaps mitigated by Hub V2, but only partially).
If SmartThings is “hacked”, it seems that the most malicious activity would be to try to halt all operations, as opposed to coordinating burglaries of distributed homes.
I suppose it would be more “fun” to unlock everyone’s doors and and/or turn on their sirens and such. It would certainly earn some publicity. Not sure if this would require a motive, beyond mischief. Anyone started watching “Mr. Robot” yet?