I-Firewall yamahhala – isofthiwe yokuvikela uhlelo nolwazi lomuntu siqu ngokumelene nezinsongo ze-intanethi. Isofthiwe ihlaziya lonke ukugeleza kwezimoto futhi ivimbela noma yimuphi umsebenzi osolisayo wezicelo ezama ukuthola ukufinyelela kwi-intanethi. I-Firewall yamahhala ibonisa zonke izinhlelo nezinsizakalo ezifakwe kwikhompyutha ngemibala ethile futhi zihlukanisa ngamaqembu afanelekayo. Isofthiwe yenza sikwazi ukusetha imithetho yakho, okungukuthi wenqabe noma unikeze ukufinyelela kwi-intanethi yesicelo ngasinye, insizakalo noma inqubo yesistimu. I-Firewall yamahhala isekela izindlela lapho isofthiwe ithola khona noma ingafinyeleli ku-intanethi uma umsebenzisi engazange abeke imithetho yakhe, futhi imodi evimbela ngokuphelele ukungena kwe-intanethi kuwo wonke ama-software kanye nezinsizakalo kungakhathaliseki ukulungiswa kwazo kwangaphambilini. I-Firewall yamahhala nayo ingavimbela imizamo yokuqapha umsebenzi womsebenzisi kwi-intanethi, ivimbele ukuthumela kwedatha ye-telemetry nokuvimbela ukufinyelela okungagunyaziwe okude kwikhompyutha.