Originally Posted by
MSPeconomist
Aren't the USB power sources considered insecure? I avoid them unless absolutely necessary in favor of real electrical outlets.
In theory, if you have a really old phone, but the probability of someone hacking the hardware on a plane is pretty small (there's a pretty small number of people, whose identities are basically all known, who would have access to it).
The reason to avoid the USB plugs on the plane is that they delivery practically zero current.