 Dollison says warning signs include pressure to act immediately and unusual payment requests, such as Venmo or gift cards, and claims of free or unrealistic low-cost product or service. Social isolation, a lack of financial literacy, and a decline in cognitive functioning, such as Alzheimer's disease or dementia, can make older adults more susceptible to scams and fraud. Dollison says it's important to remind loved ones and neighbors that scammers are out there.