Following a review of its security systems, the National Australia Bank (NAB) has decided to keep its RSA SecurID tokens for the time being.
"NAB conducted a thorough review of internal systems and services that employ RSA SecurID tokens at the time the breach occurred in March, and concluded that the impact of the incident to NAB was minimal," NAB told ZDNet Australia.
The bank said that the tokens represented only one layer of its security procedures and it continues to monitor its systems for intrusions.
"There is no requirement to cease the use of, or immediately replace, issued RSA SecurID tokens. We will continue to monitor the situation closely and will take appropriate action if it becomes necessary to do so," NAB added.
The ATO has also begun quietly replacing the SecurID tokens used by its staff.