Extended Access Control (EAC) is a set of advanced security features for electronic passports that protects and restricts access to sensitive personal data contained in the RFID chip. In contrast to common personal data (like the bearer’s photograph, names, date of birth, etc.) which can be protected by basic mechanisms, more sensitive data (like fingerprints or iris images) must be protected further for preventing unauthorized access and skimming. A chip protected by EAC will allow that this sensitive data is read (through an encrypted channel) only by an authorized passport inspection system.