A filed engineer who was servicing automated teller machines (ATM) and cash deposit machines (CDM) was jailed for four months on Wednesday for cheating.
Johnaton Choo Wei'En, 27, was working for D&S Solutions, a sub-contractor of NCR Singapore which provides maintenance to terminals belonging to DBS Bank. The bank also owns and runs POSBank ATMs and CDMs
Over seven months in 2011, he cheated DBS of $13,060 by fraudulently reporting that he had deposited various sums of money into his POSB savings account using the cash deposit machines which he knew to be false. He pleaded guilty to three of nine charges involving $8,920 and has since made full restitution.
Choo who is considering an appeal could have been jailed for up to three years and/or fined on each charge.
A district court heard that Choo's duties included clearing the money that was jammed in the machines. An escorting auxiliary police officer would disarm the machine for him to carry out the maintenance and servicing. He would clear the money that was jammed and place them into a serialised envelope with the amount written on it and drop it into a safe located within the machine.
Investigation showed that in May 2011, he discovered a flaw in the system and continued to take advantage of the system flaw until the offences were discovered.
A bank staff was doing a general ledger check on a few cash deposit machines in December that year when he found that a machine at Toa Payoh North had a shortfall of $1,200 due to two similar claims of the same amount for jammed deposits at the machine.
Realising something was wrong, he made a further check and found that Choo had made several suspicious claims for his jammed deposits at several machines from April 13 after carrying out maintenance work.