The Guardian reports that News International on Monday emailed thousands of people to warn them that one or more hackers have copied personal details of thousands of people who entered competitions and polls on the Sun's website and are posting them publicly on the internet. The hack took place several weeks ago, on 19th July.
Chris Duncan, the director of customer data for News International, wrote in the email:
"..some customer information from competitions and polls was breached...
No financial or password information was compromised.."
Given that names, addresses, dates of birth, emails and phone numbers were taken this exposes people to the risk of id theft and fraud (whatever Duncan may claim).