I thought this was worth watching to get a different understanding of my own security setup.
TL:DR is that a new mobile phone has much better security than HWW companies as they have much larger security teams, and have a big reputation to lose.
Paco posted this on NOSTR but didn't get too many responses, so I thought it be best to ask SN.
My critique on using mobile phones as a HWW is that they will need to be updated over time. There's no guarantee that the next update might wipe the blue wallet app (if it even works in 15-20 years).
Also, at some time in the future that phone will have to connect to the internet to sign and broadcast your TX.
Anyway, what do you think?