Optus, an Australian telecommunications company, has disclosed a data breach that affected the personal data of both current and former customers. With nearly 9.7 million subscribers and a founding year of 1981, Optus is Australia’s second-largest wireless service provider.
At the moment, Singapore Telecommunications is the owner. The wireless provider disclosed on Thursday that unidentified attackers had managed to break into its systems and obtained data including names, birth dates, email addresses, phone numbers, addresses, and ID document numbers.
Although all of the company’s customers were informed of the data breach, Optus CEO Kelly Bayer Rosmarin said earlier this week that it is still unknown how many of them were actually affected by the incident.