Betsy Broder, who tracks international fraud at the Federal Trade Commission, was in her office in Washington last summer when she got a call from two Indian teenagers.
Calling from a high-rise building in a suburb of Mumbai, they told her, in tones that were alternately earnest and melodramatic, that they wanted to share the details of a sprawling criminal operation targeting Americans. Ms. Broder, who was no stranger to whistle-blowers, pressed the young men for details.
“He said his name was Adam,” she said, referring to one of the pair. “I said: ‘Your name is not Adam. What does your grandmother