Is AirDrop traceable?

Can you explain if AirDrop, the feature used for sharing files between Apple devices wirelessly, leaves any trace or footprint that can be traced back to the sender or receiver? Are there any privacy concerns associated with using AirDrop for sharing sensitive information? How does the encryption process work, and does it ensure the security of the transferred data? I'm interested in understanding the security implications of using AirDrop and whether there are any best practices to follow to minimize risks.