Fujitsu offers the TPM option in selected models of the LifeBook U Series, Q Series, E Series, S Series, P Series and T Series. TPM is targeted towards corporate users as it maintains the privacy of the owner by protecting sensitive data stored in the hardware, authenticating the platform, and protecting any unauthorised use of digital signatures and random number and key generations. This hardware device enhances the security level of the hardware and operating system based on a trusted computing platform.