A former ATM mechanic/service technician in San Antonio devised a way to do this back in the late 80s. He didn’t use a computer, didn’t know how to hack, just had a knack.
He was able to fix up a card where the magnetic code had been adjusted somehow to allow universal entry to the ATM. He’d go to stores and filling stations and empty the ATMs.
He got caught in an unusal way. Since he knew all about the cameras, he always covered the lens, often with shaving cream at an outdoor bank ATM. One time while he was preparing to do his thing a serious accident occurred in the street nearby. He went over and played good samaritan with the injured until the ambulances got there. Then he went back to the ATM but in his rush, he forgot that he hadn’t covered the lens. Soon the FBI was circulating a picture of him in the neighborhoods and he was identified for the reward posted by the banks.
During his incarceration, he was let out of jail to demonstrate to the bank and ATM manufacturers exactly how he did it. I don’t know if this got him a lighter sentence.
If he had left San Antonio to ply his larceny in other towns across the country, he’d probably still be doing it today.
Yeah, some social engineering, a magnetic strip reader, a camera, tape, etcetera could go along ways to do larceny around ATMs. Thankfully, banks have insurance coverage called ‘banker’s blanket bonds’.