Clare W. Bronfman, an heiress of the Seagram Company business empire, allegedly implanted a "key logger" virus on the computer of her late father, Edgar M. Bronfman Sr., so officials with the NXIVM corporation could secretly monitor his emails, including his exchanges with world leaders and Democratic presidential candidate Hillary Clinton, according to court records. The extraordinary allegations are attributed to Kristen M. Keeffe, who was part of the inner circle that ran NXIVM, a "human development" organization that has been described by one expert as an "extreme cult." The accusations by Keeffe are contained in a transcript of a...