Even if you have nothing to hide, using encryption helps protect the privacy of people you communicate with, and makes life difficult for bulk surveillance systems. 
Hata kama huna cha kuficha, kutumia zana hii kunalinda faragha ya watu unaowasiliana nao, na kufanya iwe vigumu kwa mifumo inayofuatilia mawasiliano ya watu kufanikiwa.