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Alastair MacGibbon: Optus hack victims told to check for criminal actions by cyber security expert

A cybersecurity expert says Optus customers should watch out for criminals impersonating them online after hackers may have stolen personal information from telco’s entire customer database.

Thursday’s massive cyber breach gave hackers access to personal information, such as passport and driver’s license numbers, email and home addresses, dates of birth and phone numbers, of about 10 million Australians.

Alastair MacGibbon, chief strategy officer at cybersecurity firm CberCX and a former adviser to the prime minister, says Optus customers should beware.

Nearly 10 million Optus customers have had personal data stolen in what is considered one of the largest cyberattacks in Australian history

Nearly 10 million Optus customers have had personal data stolen in what is considered one of the largest cyberattacks in Australian history

“Personal information has been stolen,” he told ABC.

‘A lot of personal information for several million people and a little less information for about 6 million more.

“They should see if criminals impersonate them, or steal their identities, try to get credit in their name…etc.”

He said Optus can protect their customers’ interests by paying for credit monitoring.

“That way you will be checked by credit monitoring services if someone has used your name and other details to get credit,” Mr MacGibbon said.

Chief strategy officer at cybersecurity firm CberCX Alastair MacGibbon has warned Optus customers they can impersonate criminals

Chief strategy officer at cybersecurity firm CberCX Alastair MacGibbon has warned Optus customers they can impersonate criminals

Chief strategy officer at cybersecurity firm CberCX Alastair MacGibbon has warned Optus customers they can impersonate criminals

The cyber expert warned that the personal information collected by a large organization is “potentially valuable to criminals.”

“If you collect a lot of information, it’s more valuable, so any company that collects a lot of information is at risk of these kinds of incidents happening,” he said.

“Looks like this is about stealing customer data.”

MacGibbon said the breach was “quite significant by Australian standards.”

“I understand it’s about 9 million people who are affected, so I’m going to say it’s probably the Optus database, which is very important,” he said.

“This size is rare, but not entirely unlikely in a place like Australia.”

1663847312 412 Alastair MacGibbon Optus hack victims told to check for criminal

1663847312 412 Alastair MacGibbon Optus hack victims told to check for criminal

Mr MacGibbon said the Optus breach may not be the work of a sophisticated group of hackers

There was a bit of ‘good news’.

“It’s not great that it (information) was stolen or accessed, but it seems their (Optus’s) networks are functioning,” MacGibbon said.

It remains unclear what the hackers were looking for at this stage, the authorities and the telco are still investigating

“They (Optus) may have already been approached by criminals,” he said.

“We don’t necessarily know what the motives are.”

Despite the scale of the attack, MacGibbon didn’t necessarily think it was the work of master hackers.

“It could be an advanced criminal group,” he said.

“Maybe it’s a straight-forward criminal group, maybe someone has stumbled upon a vulnerability, something Optus didn’t do that it should have done in hindsight.

“From time to time, nation-states have also engaged in this kind of activity.”

Optus chief executive Kelly Rosmarin says company is working with Australian federal police to investigate attack

Optus chief executive Kelly Rosmarin says company is working with Australian federal police to investigate attack

Optus chief executive Kelly Rosmarin says company is working with Australian federal police to investigate attack

Optus is now investigating the full extent of access to information and how much was stolen and how it happened.

“Clearly there is a lot of communication with stakeholders, including government agencies, that they will have to respond to as to how this happened,” said Mr MacGibbon.

“They will of course have to report this to the Privacy Commissioner, who has been legislation for several years and they will work closely with law enforcement agencies and the Australian Cyber-Security Centre.”

After breaching Optus’ firewall, hackers reportedly stole 2.8 million passport and driver’s license numbers, email addresses, birth dates and phone numbers from customers after allegedly exploiting a weakness in the company’s firewall.

Of the other seven million, their dates of birth, email addresses and phone numbers had been stolen.

Optus may have hired credit guards to ensure their customers are not impersonated by criminals

Optus may have hired credit guards to ensure their customers are not impersonated by criminals

Optus may have hired credit guards to ensure their customers are not impersonated by criminals

Optus chief executive Kelly Rosmarin said the company was working with the Australian Federal Police to investigate the attack.

“We are devastated to learn that we have been the victims of a cyber attack that resulted in the disclosure of our customers’ personal information to someone who should not see it,” she said in a statement.

“As soon as we knew, we took action to block the attack and immediately launched an investigation. While not everyone may be affected and our investigation is not yet complete, we want all of our customers to be aware of what happened as soon as possible so they can increase their vigilance.

“We are very sorry and we understand that customers will be concerned. Rest assured that we are working hard and collaborating with all relevant authorities and organizations to help protect our customers as much as possible.”

Mobile internet and internet at home, as well as messages and voice calls are not affected

Mobile internet and internet at home, as well as messages and voice calls are not affected

Mobile internet and internet at home, as well as messages and voice calls are not affected

She said customers’ payment details had not been compromised, but advised them to check their bank accounts for suspicious activity.

‘Optus has also informed important financial institutions about this. While we are not aware of customers who have been harmed, we encourage customers to raise awareness about their accounts, for example by looking for unusual or fraudulent activity and reports that appear strange or suspicious.”

Mobile internet and internet at home, as well as messages and voice calls are not affected.

Both past and current Optus customers have been affected.

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