Here is a list of companies that have been hit by data breaches so far this year:
OPTUS<\/strong>
Australia's second-largest mobile operator<\/a> and a unit of Singapore Telecommunications<\/a> was the first to report a data breach that affected up to 10 million customers, about 40% of the nation's population. The data exposed included home addresses, drivers' licences and passport numbers.
MEDIBANK
<\/strong> Health insurer Medibank Private, which covers about one-sixth of Australians, said personal and significant amounts of health claims data of around 9.7 million of its current and former customers was compromised, forcing it to flag a hit to earnings and withdraw forecast for a key metric.
WOOLWORTHS
<\/strong> Australia's biggest grocer Woolworths Group Ltd<\/a> said its majority-owned online retailer MyDeal identified that a \"compromised user credential\" was used to access its systems, exposing email addresses, phone numbers and delivery addresses of about 2.2 million customers.
AUSTRALIAN CLINICAL LABS<\/strong>
Australian Clinical Labs Ltd, one of the country's largest pathology providers, said unit Medlab suffered a breach that exposed data of about 223,000 patients.
TELSTRA<\/a><\/strong>
Australia's largest telecoms operator Telstra<\/a> suffered what it called a small data breach, which exposed data of about 30,000 current and former employees dating back to 2017.
DAILOG<\/a><\/strong>
IT services consulting firm Dailog<\/a>, another unit of Singapore Telecommunications<\/a>, said it faced a cyber attack<\/a> that potentially affected 1,000 current and former employees and fewer than 20 clients.
FORCENET<\/strong>
Australia's Assistant Minister For Defence Matt Thistlethwaite said hackers targeted a communications platform used by the country's military personnel and defence staff with a ransomware attack but that no data was compromised.
BWX<\/strong>
Skin and hair care products maker BWX Limited said a malicious code was \"unlawfully\" entered onto one of its websites that may have compromised credit card numbers and expiry dates of about 2,500 customers.
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