When we think of insider threats, we often picture cybercriminals or disgruntled employees trying to break into a business. But there is a more personal, hidden danger lurking in the shadows of our daily lives—our own partners or, in most cases, ex-partners. In the heart of a relationship, trust is woven into every aspect of our lives. We share passwords, accounts, devices, and even locations without a second thought, but what happens when that trust is broken, when love turns to loss?