For iPhones, Mafia Firmware cannot bypass iCloud Activation Lock (Apple's server-side lock). Scammers sell "Mafia unlocked" iPhones that work for 2 days until the phone checks in with Apple. You will lose your money.
Standard antivirus or mobile security apps detect mafia firmware because: gsm mafia firmware
The industry standard for devices running on MediaTek (MTK) processors. For iPhones, Mafia Firmware cannot bypass iCloud Activation