Optus remains to be contacting victims of final week's huge cyber-attack, after initially being criticised for revealing the hack by way of the media.
The telco issued a press release this morning to say it had despatched "electronic mail or SMS messages" to all clients whose ID doc numbers, resembling their licence or passport quantity, have been compromised.
"We proceed to achieve out to clients who've had different particulars, resembling their electronic mail deal with, illegally accessed," Optus mentioned in a press release.
"We perceive and apologise for the priority that this has induced for our clients."
Fee particulars and account passwords haven't been compromised, Optus mentioned.
In a letter issued to affected clients, Optus supplied recommendation on what to do subsequent.
"Look out for any suspicious or surprising exercise throughout your on-line accounts, together with your financial institution accounts. Ensure that to report any fraudulent exercise instantly to the associated supplier," the letter learn.
Individuals are additionally suggested to beware contact from scammers, to keep away from suspicious hyperlinks, and to not present laptop entry to anyone who calls, although they might declare to be from a good organisation.
Within the letter, Optus additionally mentioned it selected to disclose the hack by way of the media because it was deemed to be the quickest and easiest way of reaching essentially the most clients, with particular person contact to comply with.
Prime Minister Anthony Albanese mentioned at present on 4BC the cyber-attack was a "big wake-up name" for the company sector.
Scammer's plot introduced undone by a number of obvious errors in textual content message
"We need to ensure, as nicely, that we modify among the privateness provisions there in order that if persons are caught up like this, the banks may be let identified, in order that they'll shield their clients as nicely," he mentioned.
"We all know that in at present's world, there are actors, some state actors, but additionally some legal organisations who need to get entry to individuals's information."
The id or motivation of the Optus hackers stay mysteries.