Four levels of government and an ISP having an easily searched and/or subpoenae'd copy of the message...?

What forum is this?

RCS are end to end encrypted.

Actually forgot this made it anywhere!

Any idea on the % adoption rate? Couldn't easily find it.

~40% according the 'trust me bro' source from large NA operator.

Thank you.

not sure why you are being downvoted. in many cases sms is not approved for client communications for exactly this reason

SMS is integrated in to the corporate messaging system on work mobile phones at banks (+ all calls recorded).

Yes, they are. Well beyond banks - it's a SOX compliance question for any publicly traded company.