What Does Black Box Attack Mean?

A black box attack is a specific type of criminal “hack” on ATMs that compels the ATM unit to disperse cash in an illegitimate way. Criminals use ATM black box attacks to drain cash out of ATM systems.

Techopedia Explains Black Box Attack

In a black box ATM attack, a criminal first drills into the shell of the ATM. Then he or she attaches a hardware piece to the cash dispersal apparatus to prompt the machine to release cash. It is important to note that unlike other kinds of brute force attacks, attackers in a black box attack are not drilling into the actual cash vault of the machine. They are using the hacking equipment to trigger the cash release instead.