I-Privatefirewall – isisombululo esihle kakhulu nesistimu yokuvikelwa kwamazinga amaningi ngokumelene nezinsongo zenethiwekhi. Isofthiwe ihlanganisa i-firewall yedeskithophu, imenenja yesicelo, umsizakalo wokuqapha uhlelo lwefayili kanye nokubhalisa, amamojula ukulandelela amathrekhi kanye netrafikhi yokuhlunga. I-Privatefirewall ingavikela ikhompyutha yakho nenethiwekhi ngokumelene nezinhlobo ezihlukahlukene zokusongela kwenethiwekhi njenge-crimeware, ukulandwa kwe-drive-by, izinkinobho, ama-rootkits. Isofthiwe ikuvumela ukuba udale uhlu lwewebhusayithi engathembeki nokwethenjelwa, ukuhlinzeka ngokuzenzakalelayo ukuvimba ukuxhumana kumasayithi aseluhlu olumnyama. I-Privatefirewall ingahlunga imilayezo ye-imeyli, ilawule ukufinyelela okulinganiselwe kwe-intanethi yezinhlelo zokusebenza, futhi ubuke futhi uvimbele uhlu lwezinqubo ezidinga uxhumano lwe-intanethi. I-Privatefirewall ihlanganisa futhi inamba yezilungiselelo zokuphepha ze-intanethi nesezintambo, izinga lokuphepha elingasetshenziswa ngokwezifiso ukuhlangabezana nezidingo zomuntu siqu.