An app for anonymously reporting individuals accused of speaking ill against conservative activist Charlie Kirk leaked personal data about its users. The app, known as “Cancel the Hate,” was taken offline on Thursday amid an investigation into the data leak by Straight Arrow News. Launched in the wake of Kirk’s assassination on Sept. 10, Cancel the Hate aims to “hold individuals accountable for their public words,” according to its website. It calls on users to “express concern” by submitting “i...