They simply create accounts on ProtonMail, which is quite simple and takes a few moments, and all the key encryption and generation is happening automatically in the background as Bob is creating his account.
Mereka tinggal membuat akun di ProtonMail, yang cukup simpel dan hanya perlu waktu sebentar, dan semua kunci enkripsi dan generasi terjadi secara otomatis di balik layar ketika Bob membuat akunnya.