Mobile computing offers significant benefits for organizations that choose to integrate the technology into their fixed organizational information system. The emergence of powerful portable computers, along with advances in wireless communication technologies, has made mobile computing a reality.In the Existing System, Lots Of Applications Are Developed To Track A Smart Phone But Still It Is Not That Comfort In Finding The Exactly. We Have To Manually Report To The Customer Of The Mobile To Block The Imei Number Of The Phone. In The Proposed System, Android Application Is Deployed With Initial Registration Of Alternative Mobile Number. If The Phone Is Stolen And Sim Card Is Not Changed, Original User Will Send Sms Through A Normal Phone Or Through An Application Deployed In Another Android Phone To Track And Verify The Location Of The Theft Mobile. The Application Will Track The Theft Phone. In The Modification Part, We Are Implementing Both The Logic Of Tracking The Theft Phone With Changed Sim Card & Not Changed Sim Card. Thief Photo Is Captured By Automatic Camera Initiation And Voice Is Recorded And Uploaded In The Server. Both The Location And Voice Are Sent As Sms Alert To The Alternative Mobile Number Of The Original User. Thief Photo Is Mailed To E Mail Id Of Original User. Location & Alert Sms Are Sent To The Alternative Number Even If Interest Is Not Available. © 2017 Elsevier B.V., All rights reserved.