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.
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Showers across western Scotland spread in across northern England but many places remaining dry, bright and chilly.
Heavy rain clearing away from the southeast leaving cooler, brighter but showery conditions.
The Queen is currently at Balmoral Castle in Scotland on her summer break.