Samsung Electronics Co., Ltd.

Sameer Kumar Agrawal

Pankaj Agarwal

Parichay Kapoor

The present disclosure relates generally to technologies for sensor networks, machine-to-machine (M2M), machine-type communication (MTC), and Internet of things (IoT). The present disclosure may be used in intelligent services (smart home, smart building, smart city, smart car, or connected car, health-care, digital education, retail business, security and safety-related services, etc.), or the like, without limitation. According to the present disclosure, a method for locking a device comprises displaying a screen requesting selection of an image category for a lock screen when an input corresponding to a lock request through a display unit supporting a touch input is detected; displaying a screen requesting setting a password for unlocking when an input corresponding to the selection of the image category is detected; and selecting images supporting the password setting among images included in the selected image category into a group when an input corresponding to the password setting is detected, and locking the touch input to the display unit by displaying one of the selected images.

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Suwon-si, South Korea

Sameer Kumar Agrawal