Which of the following is a physical security control that protects Automated Teller Machines (ATM) from skimming?

Anti-tampering controls detect or respond to physical interference with a device but do not specifically prevent the card data capture mechanism inherent in skimming attacks.

A secure card reader incorporates physical design features such as anti-skimming shields, jitter mechanisms (which randomize card movement to disrupt skimmer reads), and tamper-evident housings that make it physically impossible or detectable for an attacker to attach a skimming overlay device. These hardware-level protections directly address the card-data capture method used in skimming attacks at the point of card insertion.

An RF scanner detects radio frequency signals and is used for identifying wireless threats or RFID-based attacks, not for preventing magnetic stripe or chip skimming devices placed on ATM card slots.

An Intrusion Prevention System (IPS) is a network-based security control that monitors and blocks malicious network traffic, making it irrelevant to the physical skimming of card data at an ATM terminal.