A system for near field communication authentication (NFC) and validation to access corporate data is provided. The system comprises a mobile phone, an enterprise server, a building access sensor coupled to the server, and an enterprise network comprising a domain. The sensor comprises a NFC transceiver. The phone comprises a NFC transceiver and a trusted security zone which comprises private enterprise credentials and an application, where the application establishes a wireless link to the sensor via the NFC transceiver, couples the NFC transceiver with memory storing the credentials, and transmits the credentials to the sensor via the NFC transceiver. The enterprise server comprises a trusted security zone and an application stored in the trusted security zone, where the application receives the credentials via the sensor, authorizes access to the building based on the credentials, and authenticates the user to the domain on the enterprise network.