Right after my divorce, my father told me to change all my bank PINs—and that same night, my ex-husband and his mistress blew nearly a million dollars, until a single message stopped them cold.

the PINs on all ten of my cards at once. Business checking. Personal savings. Emergency credit lines. Travel card. Corporate card. Even the old black card hidden behind my driver’s license.

My ex-husband, Daniel Whitmore, walked past me with his new girlfriend, Vanessa Cole, on his arm. She wore a cream silk blouse and the expression of a woman certain continue reading …