Equifax

Cybercrimes present unique challenges for investigators

The federal investigators looking into the breach that exposed personal information maintained by the Equifax credit report company are used to dealing with high-profile hacks and the challenges they present.

The U.S. attorney's office and FBI in Atlanta have prosecuted developers and promoters of the SpyEye and Citadel malware toolkits, used to infect computers and steal banking information. They've helped prosecute a hack into Scottrade and ETrade that was part of an identity theft scheme, and aided the international effort that in July shut down AlphaBay, the world's largest online criminal marketplace.

The U.S. Attorney's office has confirmed that, along with the FBI, it...

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