Thousands of NAB customers have had their personal information leaked to data service companies.
The bank confirmed it was making contact with more than 13,000 people on Friday night.
It’s understood the leak was due to ‘human error’, as confirmed by the country’s fourth largest bank in a statement overnight.
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Information including date of birth, contact details and licence numbers were forwarded to two different data companies without permission.
The data service companies reportedly told NAB that the information they receive is deleted within two hours.
NAB confirmed that no log-in details or passwords were compromised in the breach.
“The issue was human error and in breach of NAB’s data security policies.
“There is no evidence to indicate that any of the information has been copied or further disclosed,” Chief Data Officer Glenda Crisp said in a statement.