The internet for most people doesn't depend on banking apps, or satellites. Wifi would still work great. If the internet actually did go out everywhere, how would an app help you?
I would guess that was how Wes Streeting was briefed (and then completely bungled in public comms).
https://monzo.com/blog/tolerating-full-cloud-outages-with-mo...
Accurate timing is needed for banks accepting/sending payments (not just £5 for the window cleaner - more billions flowing every day).
It's more accurate than getting it from a NTP pool.
- In event of all undersea cables being cut (which is a serious threat from Russia), satellite internet is your only option to have traffic leave the UK
- Unfortunately most major banks in the UK have very fragile infra that relies on foreign cloud hosts e.g AWS or Azure, which could well fall over in unexpected ways if the UK was cut off from the world
To be clear I disagree with Wes Streeting on a lot of this but the UK is in a uniquely precarious spot when it comes to how much is reliant on internet access.
I can't promise that amazon has taken into account the possibility of not being able to phone home to the US, but I would hope an undersea cable cut is something they'd have already given serious consideration to. Cuts do happen every so often. Scandinavia in particular has seen several disruptions because of cable cuts.
Either way, it's a bit of leap to go from "We need to jam other countries satellites to protect your banking app" to "but what if the UK lost every satellite, and every undersea cable was cut, and all the local data centers and internet infrastructure in the UK stopped working!"
Also isn't GPS always wireless ?
Some bank apps can block this access or request more validation
The networks (including physical IP networking) that underpin banking require a very accurate source of time to function. This is frequently farmed out to GPS, rather than use local atomic clocks. This makes GPS (or rather GNSS) a single point of failure.
I'm surprised so few people on HN appear to be aware of this.