Thieves are using keypad heat signatures to discover ATM PINs; here is how this new scam works.

Thermal Scanning: Thermal scanning is a new fraud technique associated with ATMs, where thieves attempt to acquire information using technical means. Exercising caution is essential to protect yourself from this.

Thermal Scanning: Thieves will go to great lengths to steal ATM PINs. A new method known as "thermal scanning" has emerged for this purpose. Through this scanning technique, thieves can steal your PIN. Let us explain how thieves use thermal scanning to steal ATM PINs.

What is thermal scanning?

Thermal scanning is a method that makes stealing your ATM PIN very easy because, when you place your fingers on the ATM keypad, traces of your touch remain on the buttons. Criminals use scanning technology to capture images of these traces. These images clearly reveal which buttons you have just used.

Difference between plastic and metal keypads?

Traces of your fingers persist longer on plastic keypads; they remain visible with up to 80% clarity, making it easier for thieves to photograph the marks. Conversely, fingerprints are not easily visible on metal keypads, making thermal scanning difficult because metal cools down very quickly. According to the thermal scanner, the button that appears brightest or reddest is the one that was pressed last. Meanwhile, a button that is slightly warm or less distinct indicates it was used earlier in the sequence. By analyzing these details, your 4-digit PIN can be deciphered. Simple ways to stay safe

An easy way to avoid this scam is to ensure that while entering your ATM PIN, you place your hand over the keypad or touch other buttons as well; this prevents thieves from ever discovering your PIN.