ING Australia said its phone and online banking systems have been restored after going dark on Friday afternoon.
“We‘re experiencing an outage on our mobile app, internet banking and phone banking,” the company wrote in a tweet shortly before 1pm.
“We’re sorry for the inconvenience this is causing. Our IT team are investigating it right now and we hope to have the service back up and running as normal soon.”
The services were back online by 1.20pm, a company spokeswoman said.
Some people complained online that their bank cards weren’t working while the apps were down, and the company confirmed some people experienced issues transacting.
The problem was due to an unspecified technical issue that “was resolved very quickly”, she said.
“Everything is back up and running, it was probably down for about 15 minutes to half an hour,” she said.