If you follow the rules of either service, would private cash drops be more secure than modded lobbies? Anyone here that got banned due to either of them? Care to explain how (if you followed the rules)?
They are one in the same.
A cash drop is done in a “modded” lobby by the person with the Mod menu.
Modded lobby is just a loose term meaning that someone has an active Mod menu online in a lobby.
Money drops aren’t necessarily safe by any means no matter what the host states. If for any reason a lobby is detected by Rockstar there are repercussions. Being caught could involve a money wipe or an account ban.