Mark Lennihan / AP The deception may start with a phone call and an offer to invest funds that sounds too good to be true, or a seemingly believable plea for money to rescue a grandchild from serious trouble. For millions of elderly people who answer those calls, the consequences can be devastating. Fraud accounts for $3 billion in losses and affects one in 10 seniors, according to the U.S. Department of Justice. Financial exploitation of seniors comes in myriad forms, including telemarketing scams and theft of funds by a caregiver or family member. Investment scams, solicitations for romantic partners and contractors who take seniors’ money and run are also on the radar of law enforcement agencies.