With the aging of the United States population, there are more older adults living now than at any other time. With the aging of the “Baby Boomers,” this trend will continue for at least the next two decades. Aging may be accompanied by changes in physical and mental health and functioning, which can make older adults particularly vulnerable to crime, abuse, and neglect. Isolation, memory loss, and diminished cognitive ability make it easier to defraud or coerce them. Some may never have handled financial matters, and the death of a spouse or partner may require them to manage complex financial transactions for the first time, making them more vulnerable to fraud and identity theft. Physical frailty reduces their ability to resist force and magnifies the impact of violence. Whether older adults live at home or in institutional settings, if they require assistance they will be brought into intimate contact with caregivers, making them more vulnerable to abuse and undue influence and potentially exposing them to untrustworthy people. They may be unable to protect themselves or recognize they have been victimized and may be unwilling or unable to report the abuse or seek assistance. Even when older adults are in good health, they may be targets for abuse because of their perceived frailty.