If you’re capable of shopping on the darknet, you’re capable of encrypting your order. PGP provides protection for both parties, thwarting man in the middle attacks and keeping busybodies at bay. The following guide explains how to install PGP and then use it to place an encrypted order on the darknet.
https://news.bitcoin.com/how-to-encrypt-messages-with-pgp-when-using-darknet-markets/