The security guard, Santosh, is also part of the Delhi police’s community policing initiative called Prahari.The police said the accused used to cancel the transaction as soon as the machine was about to dispense the cash and would insert a "key" in the ATM shutter to take out the money.

A security guard, posted at an Socks Machine Suppliers ATM in southeast Delhi’s Kalkaji, caught a person who allegedly used to tamper with the cash vending machines and con banks.Tech student, was found carrying three ATM cards, one small key and Rs 30,000 cash.Thirty more ATM cards of different banks in the name of different persons along with 40 signed cheques have been seized from the accuseds rented flat in Greater Noida, the DCP said, adding some notes and books about ATM hacking were also seized..The accused has been handed over to the police. The accused, Mukul Rajput (20), a B. He would later contact the bank concerned claiming that despite cancelling the transaction, money has been withdrawn from his account and would request reimbursement, another police officer said.