Locked-down lawyers warned Alexa is hearing confidential calls
I have no doubt they are able to hear anything happening in the room they happen to be installed in.  But I doubt they listen for anything but their keyword, and I seriously doubt they listen, record and send off to their overlords what they hear on a massive basis.However, they clearly CAN, and while they almost certainly don't on any massive scale, if they by their overlord or a security hack, did on a targeted basis listen, record and send conversations on, that would be very possible, and very harmful for whoever was targeted.I can't imagine the NSA and other covert organizations not drooling at the chance to do just that.  I'm also fairly certain those devices are not secure as by and large the tech industry has a complete failure rate at making anything computing related secure.