The author of a landmark gender report has received security advice in a bid to keep her safe after being sent “vile” abusive emails. Dr Hilary Cass also slammed the spread of “disinformation” around her report and warned that young people are being put “at risk” by the growth of false information. The 388-page Cass report, which investigated the treatment of transgender children, received backlash from figures including the Labour MP Dawn Butler. Butler repeated claims that Cass had not included 100 transgender studies in it. However, she said the allegations were “completely wrong” and it wa…