Can somebody TLDR; why 5G is so much more dangerous (security wise) vs 4G? Plus I do like the two-facedness - nobody should spy unless it's us.
- Almost any existent device will likely be connected to the Internet through 5G almost as fast as it became available
- Access probably will be a LOT cheaper than 4G, will get there a lot faster (months not years), so everybody will be onboard ASAP
- 5G network could easily replace many fiber optic deployments currently used by telecommunication companies big clients (so if you breach the 5G infrastructure, you're reaching internal networks in banks, trust funds, government sensitive information offices, whatever fancy dangerous stuff not suitable for public access)
- 5G is REALLY FAST and RELIABLE, (very hight bandwith plus very, very low latency), so if you hack into something, or if you deploy malware, it will spread faster than the Thanos snap. The data exfiltration - taking your stolen data out to your infrastructure - could take a LOT less than now, this probably means the bad guys could hack out a lot more data than now, also probably using a "raw" approach: if you get in, just transfer everything you can access, right now
- The massive (freaking massive) traffic you're going to see into the network monitoring infrastructure will probably be very similar to what Five Eyes currently sees for entire countries, but in city per city base (NY, Boston, DC, Berlin, Barcelona, etc.), so initially very few players will be able to get out something meaningful from the monitoring stuff, but what devices failed: more bad guys oportunities.
Finally.
- Whoever makes the hardware has the upper hand, you - whoever you are - go behind them, in almost any security scenario.
So yeah, we need to have this stuff under some serious control.
Trump is almost certainly right in his attemp to make what he's doing.