u/ComfortableWealth230

As a layman, I would like to know if it is theoretically possible (I know it is illegal) to access a phone without physically having it in hand. Or if it is possible to hack someone's account without them finding out (assuming they have two-factor authentication).

I am a nuclear medicine technologist in Italy and am considering moving to the USA. Do you have any tips on getting my degree recognized? What changes in terms of the work itself? Any suggestions are welcome.