Ive just airdropped a file from my phone (iPhone 8, iOS 12.x) to my computer (MacBook Pro, OSX 10.13.x). Both devices use the same Apple / iCloud ID.
The file was received fine, but I was not required to confirm acceptance of the file on my computer. My concern is that someone could send me a file maliciously.
My computers AirDrop settings are set to "Allow me to be discovered by Contacts Only."
If another contact with a different Apple ID tried to Airdrop a file to my computer, would my computer ask me to accept it ?