Article continues below advertisementEx-Prince Andrew is at the center of a "high alert" security scare after peeved protestors turned Buckingham Palace into an "Epstein survivor memorial," OK! can reveal.Demonstrators placed plaques remembering Virginia Giuffre - the Jeffrey Epstein s-- trafficking victim who repeatedly stated Andrew had s-- with her when she was as young as 17 before she took her life last year at age 41, following a reported $15 million out-of-court settlement over her claims from the ex-royal, which he paid without admitting liability.