Guardian: The parenting website Mumsnet has become one of the latest high-profile organisations to warn that users’ data had been obtained by hackers exploiting the so-called Heartbleed bug, a vulnerability to the open-source code used by thousands of websites which became apparent last week.
The site, which has 1.5 million registered members, said it had no way of knowing who had been affected before the security hole was patched up and had decided to require all users who created passwords on or before Saturday to change them.