Two Singtel business units have disclosed cyberattacks, though the two attacks appear unrelated. Also, it's unclear if Trustwave – an MSSP unit owned by Singtel – is assisting with the cleanup.
The latest disclosure involves Dialog Group, an Australia-based IT services firm that Singtel's NCS acquired in March 2022.
Here are key takeaways from Dialog's statement regarding the incident:
Dialog is "actively engaging with potentially impacted stakeholders to share information, support and advice" to address the incident, the company said.
Optus Discloses Cyberattack
Dialog's cybersecurity incident comes after Optus notified its customers about a cyberattack in September 2022. One report indicated up to nine million Optus customers may have been affected by the attack.
Optus noted the following customer information may have been compromised during the attack:
Optus Stops Attack
Optus has "shut down the attack," the company indicated. It has notified the Australian Federal Police, the Office of the Australian Information Commissioner and other Australian regulators about the attack. It also is working with the Australian Cyber Security Centre to mitigate any risks to customers and hired Deloitte to conduct an independent external review of the attack.
To date, there is no evidence of any link between the Dialog and Optus cyberattacks. Investigations may be completed to provide additional insights into the cyberattacks and why they occurred.
