SYDNEY (Reuters) - Australian No. 2 telco Optus, owned by Singapore Telecommunications Ltd, said it will contact up to 10 million customers whose personal details were taken in a "sophisticated" hack, but added no corporate clients were compromised.
Optus chief executive Kelly Bayer Rosmarin said she was angry and sorry that an offshore-based entity had broke into the company's database of customer information, accessing home addresses, drivers licence and passport numbers in one of the country's biggest cybersecurity breaches.