The new Cayman models are equipped as standard with an immobiliser with in-key transponder. In addition, the Cayman S has an alarm system with contact-sensitive exterior protection. A radar-based interior surveillance system is available on request. For the Cayman, a combined alarm and radar-based interior surveillance system is available as an option.

This optional preparation enables future installation of the Porsche Vehicle Tracking System (PVTS) from Porsche Tequipment. PVTS makes it possible to locate a stolen vehicle across most European countries. The preparation package includes a special wiring loom and a tilt sensor for the alarm system.