US federal authorities have arrested and charged two men for alleged ATM "jackpotting" activity at a bank in Connecticut. Alex Alberto Fajin-Diaz, 31, a citizen of Spain, and Argenys Rodriguez, 21, of Springfield, Mass., were detained on Jan. 27 in Cromwell, Conn., near a compromised ATM machine that was under attack.

Citizens Bank contacted police after noticing an attack underway on its ATM, which was spitting out $20 bills. Police found Fajin-Diaz and Rodriguez nearby with more than $90,000 in cash in $20 bills. Their vehicle contained tools and electronic devices typically used in ATM jackpotting attacks.

Federal, state, and local law enforcement agencies already had been investigating jackpotting attacks in Connecticut and other states. Diebold Nixdorf and NCR, two of the world's largest ATM vendors, late last year warned their US customers about jackpotting attacks, where cybercriminals infect the machines with malware inserted into the machines that ultimately programs them to rapidly dispense cash.

The two ATM jackpotting suspects, if found guilty, face a possible sentence of 30 years in prison.

Read more on the ATM jackpotting bust here.