The Free Press, a liberal-leaning news website, has been targeted by hackers, according to a statement from the organization.
The hackers published a file with personal information of the group’s board members.
The group has not released any information about the breach.
The news site has reported that it is being attacked in response to a report about a leak of confidential data.
The company has not yet released a statement about the hack.
The Free Society group has had several issues with the mainstream media in recent years.
In March, the organization announced it was cancelling a planned visit to the US, citing political tensions with President Donald Trump.
It later said the trip was not cancelled.
In November, the group said it would suspend its US trips and work closely with the US government.