In today’s world, an enterprise user uses quite a number of applications or IT resources which have their own set of credentials. These credentials differ from system to system or applications to applications and needs to be remembered by the particular user. Also, user has to enter the different credentials too again and again whenever re-login to any application is needed. This consumes time and requires unnecessary efforts. This project made use of IBM Security Access Manager Enterprise Single Sign-On (ISAMESSO) and smartphone of the user to automate the above. ISAM ESSO securely manages each user's application credentials and automatically delivers these credentials to the logon screens of various applications when a user launches them. We have enhanced this by integrating the single sign on feature of ISAMESSO with Bluetooth proximity functionality. ISAM ESSO client is installed on laptop. Client’s workstation and smartphone communicates via Bluetooth in such a way that, whenever the Bluetooth enabled phone of the user is within the laptop's Bluetooth range and unlock command is send via app, not only the OS get unlocked but using the single sign on feature of ISAMESSO, the different applications which the user was using also gets unlocked. Further, when the user moves out of the vicinity of the laptop/desktop it will get locked automatically together with all the applications. The locking/unlocking facility is made automatic as well as manual.