ATM Security (2024)

FAQs

What security do ATMs have? ›

The supplied PIN is encrypted at the entry terminal, during this step, a secret cryptographic key is used. In addition to other transaction elements, the encrypted PIN is transmitted to the acquirer's system. Then, the encrypted PIN is routed from the acquirer's system to a hardware security module.

Keep your PIN a secret

Always block the view of the ATM keypad with your hand while entering the PIN. Never disclose your PIN to anyone, unless you trust them explicitly. Remember, banks will never ask for your PIN, so do not be lured by anyone who asks for it. Also, avoid writing it down anywhere; commit it to memory.

ATM security threats emerge quickly

They attack software services to inject malware into processing systems and use 3D printing to create skimming devices. Miniaturization technology helps them place tiny cameras to capture a customer's Personal Identification Number (PIN) input.

Some ATMs have built-in cameras, but many do not. The large ATMs located in banks or credit unions usually have cameras. Probably 95% of these have cameras installed.

A concealed camera is typically used in conjunction with the skimming device in order to record members typing their PIN into the ATM keypad. Cameras are usually concealed somewhere on the front of the ATM.

Banks leverage sophisticated rule-based detection systems that monitor transaction patterns and flag anomalies. These systems analyze factors such as transaction frequency, amount, and geographical location, comparing them against established customer profiles and historical data.

Cover the ATM keypad as you're entering your PIN — just in case there's a hidden camera around. Skimming devices will stick out a few extra inches from an ATM. If something looks suspicious, find another ATM.

If something looks different, such as different colors or materials, graphics that aren't aligned correctly, or anything else, don't use that ATM. Additional signs of tampering are holes on the machine's surface, holographic tape over seams, or bubbles of glue on the machine.

Are ATMs outside banks safe? ›

ATMs at banks usually have better surveillance and so avoid tampering by criminals. It is easier for criminals to rig non-bank ATMs at locations like the grocery store, shopping mall, or convenience store. Don't re-enter your PIN if the ATM swallows your card.

If you withdraw cash, put it away promptly; count it later, in private. Put your ATM card and receipt away promptly; never leave your receipt at the ATM. Keep your PIN secret—don't write it down, and don't share it with anyone you don't trust absolutely.

It turns out that most ATMs will swallow any unclaimed money within a few minutes, and the discrepancy will show up when the machine is balanced at the end of the day. If no one came along immediately behind you, you stand a good chance of getting your money back.

An ATM looting is a type of bank robbery in which a series of cash machines are robbed of cash. The thieves do the looting by using identity fraud to create debit cards containing other people's banking information, then they withdraw money from other peoples' bank accounts.