The leading UK site for parents has had users data compromised by hackers then using 'Heartbleed' exploit.
Mumsnet sent an email to users, warning that the hackers may have passwords and personal messages before network administrators were able to fix the vulnerability.
The website has urged all users to change their passwords.
More top news
The Queen's representative in Canada says he "heartily" encourages the romance.
Shadow Chancellor John McDonnell will say Britain is in the grip of a "debt crisis" as he promises reforms to help people pay back loans.
The 58-year-old man was stabbed in the neck as he approached the Altrincham Islamic Centre in Manchester.