When ocbc first started, the internet banking pin is same as atm. I dunno can change or not after that, cos my balance in there is low. And their IB pin is too simple. Dbs is a little more complex than ocbc, but still considered simple. Scb, Citi are ok, using password, will take longer time to crack.pretty sure can set internet banking pin to be different from atm pin .
in fact that should be a hygiene to set different pins.
i suspect most of the ocbc scam victimes internet banking pin and atm pin is the same , thats why fraudster only need to phish user id + pin + sms otp to setup the digital token since atm pin is same pin