Diebold Nixdorf and NCR Corp, two of the world’s largest ATM makers, have warned that cyber criminals are targeting US cash machines in hacking schemes known as “jackpotting”.
The attacks, in which hackers deploy tools that force the machines to spit out cash, were first reported over the weekend by the security news website Krebs on Security.
The companies confirmed to Reuters on Saturday they had sent out the alerts to clients.
NCR said in a Friday alert that the cases were the first confirmed “jackpotting” losses in the US.
It said its equipment had not been targeted in the recent attacks, but that it was still a concern for the entire ATM industry.
“This should be treated by all ATM deployers as a call to action to take appropriate steps to protect their ATMs against these forms of attack,” the alert said, according to Reuters.
Diebold Nixdorf said in a separate alert that US authorities had warned the firm that hackers were targeting one of its ATM models, known as Opteva, which went out of production several years ago.
A confidential US Secret Service alert sent to banks said the hackers targeted stand-alone ATMs typically located in pharmacies, big box retailers and drive-thru ATMs, Krebs on Security reported.
Diebold Nixdorf’s alert described steps that criminals had used to compromise ATMs. They include gaining physical access, replacing the hard drive and using an industrial endoscope to depress an internal button required to reset the device.
The two ATM makers did not identify any victims or say how much money had been lost, Reuters said.
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