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Mary: Who got ripped off?
Joe: Big time! A hacker broke into the company's files and got all her personal information. You really think it's completely safe?
Mary: Well, maybe not 100 percent. I did hear about some tricks people use.
Joe: Now we're getting to the truth.
Mary: There are shills. A shill is someone who bids up the price of their own sale.
Joe: See? And I bet that's easy to do online. Everybody's anonymous.
