Answer:
Bluejacking
Step-by-step explanation:
Bluejacking is a mechanism of sending unsolicited messages over Bluetooth to Bluetooth-enabled devices such as PDA and mobile phones. This is different from bluesnarfing which refers to illegal information access remotely from a bluetooth enabled device. Both Bluejacking and Bluesnarfing are a violation of user's privacy. A longer range variant of blusnarfing is known as bluesniping.