Not to mention that the satellite connection was meant for emergency calls and emergency calls already attempt to used ANY available cellular connection (not just your own carrier). This feature is only useful for people who spend considerable time outside of cellphone coverage areas and those people would be better served by an actual satellite phone.
40 Mbps is the amount of data that can be moved in one second; the difference between 20% saturation and 90% saturation should have negligible impact on latency. The bottleneck would occur if you OVERsaturate the line (ie. trying to pull more than 40mbps down) because then the packets would need to take turns coming in and possibly even be re-sent from the source if the latency is so bad that those packets are wiped from cache on routers or switches. (FUN FACT: this is basically how a DDOS attack works, too many packets are being thrown at your network and your router can’t say “no” fast enough to the bad data so latency approaches infinity and the good data ends up getting buried as well)
I hate Doorsdash so fucking much but I’m pretty sure I’m addicted to it. It’s one of those terrible destructive relationships and I find myself screaming at the app every time I use it. I recently discovered a neat trick though, where if I order from the website then the app won’t spam me with the double-dash popup but I’ll still get my delivery statuses.
I’ll answer because I found the information. It appears that the attacker would need to rely on physical access to the machine OR another exploit that lets them access the computer remotely.