Is it possible to eavesdrop on someone with MITM if they are using aVPN.Wouldn't it be encrypted? How would the victim know
No. With a VPN there is no man-in-the-middle; it's just a straight encrypted connection between the users' system and the the VPN server. Even if you were to install some kind of packet grabber the results would be encrypted randomness, if the VPN is doing what it's supposed to.
