Smart Home can be also known as Automated Home or intelligent home which indicates the automation of daily tasks with electrical appliances used in homes. This could be the control of lights or be giving the alarm alteration. Home security has changed a lot over the last century and will be changing in coming years [1] Security is an important aspect or feature in the smart home applications. [2] The new and emerging concept of smart homes offers a comfortable, convenient, and safe environment for occupants. Conventional security systems keep homeowners, and their property, safe from intruders by giving the indication in terms of alarm. However, a smart home security system offers many more benefits. This paper mainly focuses on the security of a home when the user is away from the place. Two systems are proposed, one is based on GSM technology and other uses a web camera to detect the intruder. The first security system uses a web camera, installed in-house premises, which is operated by software installed on the PC and it uses the Internet for communication. The camera detects motion of an intruder in front of the camera dimensions or camera range. The software communicates to the intended user via Internet network and at the same time, it gives a sound alert. The second security system is SMS based and uses GSM technology to send the SMS to the owner. The proposed system is aimed at the security of Home against Intruders. In any of the above cases happens while the owners are out of their home then the device sends SMS to the emergency number which is provided to the system. The system is made up of three components: sensors, GSM-GPS Module, microcontroller, relays to control the device and buzzers to give security alert signal in terms of sound.