“Jackpotting” attacks that cause ATMs to spit out their cash inventory have come to the US, according to a Secret Service alert sent to financial institutions.

KrebsOnSecurity, a blog, obtained a copy of the alert. It broke the news on Saturday about a series of such attacks and of expectations for more.

The attacks rely on an endoscope — a slender instrument used to give physicians a look inside the human body — to attach a cord inside an ATM and sync it to the attackers’ laptop.

A sophisticated strain of malware, first spotted in Mexico in 2013, then forces the ATM to dispense cash “at a rate of 40 bills every 23 seconds,” according to the alert.

Money mules typically collect the spewed loot and a phony technician retrieves the endoscope.