Intimate Partner Threat
Princeton’s Karen Levy has a good article computer security and the intimate partner threat:
When you learn that your privacy has been compromised, the common advice is to prevent additional access—delete your insecure account, open a new one, change your password. This advice is such standard protocol for personal security that it’s almost a no-brainer. But in abusive romantic relationships, disconnection can be extremely fraught. For one, it can put the victim at risk of physical harm: If abusers expect digital access and that access is suddenly closed off, it can lead them to become more violent or intrusive in other ways. It may seem cathartic to delete abusive material, like alarming text messages—but if you don’t preserve that kind of evidence, it can make prosecution more difficult. And closing some kinds of accounts, like social networks, to hide from a determined abuser can cut off social support that survivors desperately need. In some cases, maintaining a digital connection to the abuser may even be legally required (for instance, if the abuser and survivor share joint custody of children).
Threats from intimate partners also change the nature of what it means to be authenticated online. In most contexts, access credentials—like passwords and security questions—are intended to insulate your accounts against access from an adversary. But those mechanisms are often completely ineffective for security in intimate contexts: The abuser can compel disclosure of your password through threats of violence and has access to your devices because you’re in the same physical space. In many cases, the abuser might even own your phone—or might have access to your communications data because you share a family plan. Things like security questions are unlikely to be effective tools for protecting your security, because the abuser knows or can guess at intimate details about your life—where you were born, what your first job was, the name of your pet.