Singtel's second unit faces cyber attack weeks after Optus data breach

FILE PHOTO: A Singtel booth is pictured at the Money 20/20 Asia Fintech Trade Show in Singapore March 21, 2019. REUTERS/Anshuman Daga

(Reuters) -Singapore Telecommunications Ltd said on Monday its unit Dialog faced a cyber attack that potentially affected 1,000 current and former employees and fewer than 20 clients, weeks after a massive data breach at another Australian unit - Optus.

The breach at Optus, Australia's second-largest mobile operator, late last month compromised data of up to 10 million customers, triggering an overhaul of consumer privacy rules to facilitate targeted data sharing between telecommunication firms and banks.