At the time Optus apologised and had Sensis scrub the customers’ information from its online directory,but many details were also printed in the physical editions.
This week,the Office of the Australian Information Commissionersaid it was investigating the issue and its potential privacy ramifications after previously making inquiries.
“The public disclosure of personal information against the wishes of individuals may have the potential to cause harm,” wrote the OAIC in announcing the investigation.
“The OAIC’s investigations can determine whether such matters involve systematic issues that can be prevented by ensuring the right practices are in place.”
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The action follows a similar incident in 2014 that saw the details of more than 100,000 Optus customers published in the White Pages without their consent. In response tothat incident and others,in 2015 the OAIC directed Optus to undertake independant reviews of its procedures.
In keeping with the OAIC’s policy,it is making no further comment on the matter while the investigation is underway.