Securing data is becoming of the utmost strategic importance in today’s digital environment. Open wide networks such as the Internet and inter-dependencies of modern systems have reshaped security requirements of smart card platforms. Smart card chips have been designed for 20 years to protect data and resist against attacks. Design mechanisms, cryptography, software implementation and certification process have all been introduced to provide efficient tamper resistant techniques against piracy. These techniques are re-used by a semiconductor industry demanding even more security. At the same time, smart card industry tries to address this demand and modify its positioning. This global convergence slightly impact new modern integrated systems.