Prosecutors: Russian man stole data from Phoenix Zoo

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(Source: CBS 5 News) (Source: CBS 5 News)

A Russian man recently arrested on bank fraud and other charges is accused of hacking into computers at the Phoenix Zoo.

Roman Valerevich Seleznev appeared in court in Guam on Monday and was ordered detained until his July 22 hearing. The 30-year-old Moscow man was arrested by the U.S. Secret Service on Guam early Sunday.

The U.S. attorney's office in Seattle says Seleznev hacked into the computers of retailers, installed malicious software and stole credit card numbers from 2009 to 2011.

An indictment unsealed Monday includes details about some of the "hundreds of retail businesses" from which he's accused of stealing credit card data.

The indictment charges him with bank fraud, obtaining information from a protected computer, possessing stolen credit cards and identity theft.

Phoenix Zoo spokeswoman Linda Hardwick said the U.S. Secret Service contacted the zoo in early 2010 to inform management a breach had occurred.

The zoo discovered, through a forensic analysis, that an attacker had launched a malware program to gain access to stored credit card data residing in a database used by the zoo's Point of Sale system.

"By hacking passwords to the system, the attacker was able to ship some of this data outside of the zoo," Hardwick said in a statement. "This resulted in unauthorized use of credit card information stolen in the attack."

The zoo said it received less than five phone calls from guests regarding suspicious activity. Most of the customers affected worked directly with their own institutions to restore their accounts.

Hardwick said in the wake of the attack, the zoo implemented Payment Card Industry  compliance standards.

"PCI compliance pertains to technology and business practice standards intended to protect credit card data collection and storage," she said.

Hardwick added the zoo "has been diligent in PCI compliance and the implementation of other strategies that are intended to prevent and mitigate the effects of the ever present threats that are part of today's environment."

The zoo said it has not had any other similar incidents since this one occurred several years ago.

Copyright 2014 CBS 5 (KPHO Broadcasting Corporation). All rights reserved. The Associated Press contributed to this report.