As per the latest study, Smartwatch can reveal the ATM Pin, keypad-controlled enterprise servers, and electronic door locks etc.

According to the researchers, the danger comes from the motion sensors embedded in wearable devices like Smartwatches and fitness trackers. A study from Binghamton University suggests your smartwatch might not be as secure as you’d think – and it might be giving away your ATM PIN code.

The technique is called internal attack; the attackers use a malware to access the embedded sensors in wrist-worn devices. When the victim access a key-based security system, the malware sends the sensor data back to the attacker, in which can be aggregated to determine the victim’s PIN?

On the other hand, the sniffing method requires a sniffer to be placed near the key-based security system. The sniffer will then pry on the sensor data from the wearable devices sent via Bluetooth to the victim’s associated Smartphone’s

The study further says that attackers can retrieve information about your hand movements either by infecting your device with malware or by intercepting the Bluetooth connection that links your smartwatch to your phone.

So smartwatch-users, beware: You might wanna use your watch-free hand when typing passwords from now on.