Families are in an uproar after the head of a pro-transgender activist group, called Mermaids, posted online 1,000 pages of confidential emails about children with transgender issues.

Names were included.

So were addresses, telephone numbers and “deeply intimate details of children’s mental state and medical history.”

Parents weren’t left out. Their comments and questions were posted for the public to see.

The taxpayer-funded group works with children and their parents to “educate schools about homophobic, biphobic and transphobic bullying.”

According to the Christian Institute, one mother in the United Kingdom whose child’s identity and circumstances were made public said, “I don’t think there could be a more fundamental breach of his right to privacy.”

Another said, “I have lost all trust in Mermaids.”

The 1,000 pages of confidential emails from 2016 and 2017 were “available online for anyone to read.”

The emails had been sent confidentially to Mermaids CEO Susie Green, who then “had posted them in an online group, which stated that its ‘archives are visible to everyone.'”

Also included were internal emails for Mermaids leaders and minutes from a board meeting.

“Other emails contained alarming revelations about residential weekends for children and parents, which provided a platform for young people to show off their mastectomy scars and also included a talk about genital surgery,” the report said.

The institute said, “Mermaids regularly courts controversy, most notably for its campaign for the NHS to give infertility-causing cross-sex hormones to children.”

The group also has provided “training” to police departments that featured a sliding scale of “gender spectrum” showing Barbie at one end and GI Joe at the other. reported the reaction to the exposure of children’s names and details as “fury.”

Parents were calling for a government investigation.

Mermaids insisted the breach was a “mistake.”

The group’s own policy warns that any staff member who discloses private client details risks “termination.”

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