What is ATM hard drive encryption in banking?

Hard drive encryption is a cybersecurity measure that protects data stored on an ATM or ITM by converting it into unreadable code that cannot be accessed without the correct decryption key — ensuring that sensitive transaction data remains protected even if the physical device is compromised.

ATMs and ITMs store a variety of sensitive data including transaction logs, configuration files, and in some cases cached customer information. Without encryption, a bad actor who gains physical access to the device could potentially access that data. Hard drive encryption renders the data unreadable without the authorized decryption credentials, closing that vulnerability.

For financial institutions subject to PCI DSS requirements, hard drive encryption is a baseline security control that auditors and examiners increasingly expect to see in place across the ATM and ITM fleet. CSG's RemoteView Managed Services includes hard drive encryption as part of the standard security package, applied and managed remotely across the entire fleet — ensuring consistent coverage without requiring institution staff to manage encryption keys or deployment on a machine-by-machine basis.