All 911 models are equipped as standard with an immobiliser with in-key transponder and an alarm system with contact-sensitive exterior protection and radar-based interior surveillance.

This optional preparation enables future installation of a Porsche Vehicle Tracking System (PVTS) available from Porsche Tequipment. The system makes it possible to locate a stolen vehicle across most of the countries of Europe. The package includes a special wiring loom and a higher-capacity battery. A tilt sensor for the alarm system is also fitted as part of the preparation equipment.