Mari Frank, Age? "That's an invasion of my privacy!"
On a crusade since: 1996
Day job: Attorney, radio show host
Achievement: Pushed for laws giving identity-theft victims more rights to protect themselves.
Why she's a hero: In 1996, when a bank came after Frank for not repaying a loan, the California lawyer spent nearly a year trying to prove that someone had stolen her identity to borrow $50,000. "Victims were treated horribly," she says.
Afterward she wrote a book of advice for other people hit by identity theft and fought for their right to gain access to documents needed to clear their names.
Quote: "Most of this occurs because companies fail to secure consumers' personal data."
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