Maybe you're right, but considering how easy it is to set up a signal account (<5 minutes) vs messaging your assistant to provision a phone and a sim card (or a

Maybe you're right, but considering how easy it is to set up a signal account (<5 minutes) vs messaging your assistant to provision a phone and a sim card (or a couple of them, just so that he could text someone), I'm not so sure about it. Assuming that his threat model is "my phone number will not be leaked", signing up on signal with his personal number seems fine.