Posts Tagged: Reed Elsevier

Oct 13

Senator Demands More Info From Experian

In the wake of revelations that credit bureau Experian sold consumer data to the proprietors of an underground identity theft service, a powerful U.S. senator is calling on the company to divulge more information on the extent of the potential damage to consumers.

EXPWest Virginia Senator Jay Rockefeller, a Democrat who chairs the Senate Committee on Commerce, Science and Transportation, on Wednesday sent a letter (PDF) to Experian demanding additional details about the security breach. Specifically, Rockefeller asked for responses to questions about Experian’s vetting process for its customers and current practices for sharing consumer data. The senator also urged Experian to fully respond to his related previous inquiries regarding Experian’s customers, its oversight of its disclosure to third parties, and Experian’s data sources.

“The committee’s investigation has focused to date on how companies including Experian collect and sell consumer information for marketing purposes, while the information Experian reportedly sold to identity thieves – such as Social Security numbers and banking information – appears to be data Experian collects and sells for risk assessment activities,” Sen. Rockefeller wrote in the letter to Experian President Donald Robert. “However, if these recent news accounts are accurate, they raise serious questions about whether Experian as a company has appropriate practices in place for vetting its customers and sharing sensitive consumer data with them, regardless of the particular line of business.”

The letter is a follow-up to an investigation that Sen. Rockefeller launched in October 2012 regarding several data brokers — including Experian — to understand how the companies collect, store, and share personal consumer data. According to the committee, Experian is one of several companies that has refused to fully respond to Rockefeller’s request for information – which Rockefeller discussed publicly in this letter.

That 2012 letter was sent to the three major credit bureaus, including Experian, Equifax, TransUnion. Rockefeller also queried Reed Elsevier, the parent company of data aggregator LexisNexis. Last month, KrebsOnSecurity broke a story showing that LexisNexis was among three other data brokers that had been hacked by a cybercriminal gang which operated a competing underground identity theft service — ssndob[dot]ms.

In a statement provided to The New York Times, Experian spokesman Gerry Tschopp said: “We have responded — and will continue to respond – in a very transparent manner to Senator Rockefeller.”

According to The Times, Sen. Rockefeller last month widened his probe, asking a dozen popular Web sites to provide information on their information-sharing practices with data brokers. The sites included in that inquiry were,,,,, and

“While some consumers may not object to having their information categorized and used for marketing,” the senator wrote, “before they share personal information, it is important that they know it may be used for purposes beyond those for which they originally provided it.”

Oct 13

Experian Sold Consumer Data to ID Theft Service

An identity theft service that sold Social Security and drivers license numbers — as well as bank account and credit card data on millions of Americans — purchased much of its data from Experian, one of the three major credit bureaus, according to a lengthy investigation by KrebsOnSecurity. home page home page

In November 2011, this publication ran a story about an underground service called, a fraudster-friendly site that marketed the ability to look up full Social Security numbers, birthdays, drivers license records and financial information on millions of Americans. Registration was free, and accounts were funded via WebMoney and other virtual currencies that are popular in the cybercriminal underground.

Each SSN search on returned consumer records that were marked with a set of varying and mysterious two- and three-letter “sourceid:” identifiers, including “TH,” “MV,” and “NCO,” among others. I asked readers who may have a clue about the meaning or source of those abbreviations to contact me. In the weeks following that post, I heard from many readers who had guesses and ideas, but none who seemed to have conclusive information.

That changed in the past week. An individual who read a story about the operators of a similar ID theft service online having broken into the networks of LexisNexis and other major data brokers wrote to say that he’d gone back and reviewed my previous stories on this topic, and that he’d identified the source of the data being resold by The reader said the abbreviations matched data sets produced by Columbus, Ohio-based

Contacted about the reader’s claim, U.S. Info Search CEO Marc Martin said the data sold by the ID theft service was not obtained directly through his company, but rather via Court Ventures, a third-party company with which US Info Search had previously struck an information sharing agreement. Martin said that several years ago US Info Search and CourtVentures each agreed to grant the other company complete access to its stores of information on US consumers.

Founded in 2001, Court Ventures described itself as a firm that “aggregates, repackages and distributes public record data, obtained from over 1,400 state and county sources.” Cached, historic copies of are available through


In March 2012, Court Ventures was purchased by Costa Mesa, Calif.-based Experian, one of the three major consumer credit bureaus. According to Martin, the proprietors of had gained access to Experian’s databases by posing as a U.S.-based private investigator. In reality, Martin said, the individuals apparently responsible for running were based in Vietnam.

Martin said he first learned of the ID theft service after hearing from a U.S. Secret Service agent who called and said the law enforcement agency was investigating Experian and had obtained a grand jury subpoena against the company.

The "sourceid" abbreviations pointed toward Court Ventures.

The “sourceid” abbreviations pointed toward Court Ventures.

While the private investigator ruse may have gotten the fraudsters past Experian and/or CourtVentures’ screening process, according to Martin there were other signs that should have alerted Experian to potential fraud associated with the account. For example, Martin said the Secret Service told him that the alleged proprietor of had paid Experian for his monthly data access charges using wire transfers sent from Singapore.

“The issue in my mind was the fact that this went on for almost a year after Experian did their due diligence and purchased” Court Ventures, Martin said. “Why didn’t they question cash wires coming in every month? Experian portrays themselves as the databreach experts, and they sell identity theft protection services. How this could go on without them detecting it I don’t know. Our agreement with them was that our information was to be used for fraud prevention and ID verification, and was only to be sold to licensed and credentialed U.S. businesses, not to someone overseas.”

Experian declined multiple requests for an interview. But in a written statement provided to KrebsOnSecurity, Experian acknowledged the broad outlines of Martin’s story and said it had worked with the Secret Service to bring a Vietnamese national to justice in connection with the online ID theft service. Their statement is as follows:

“Experian acquired Court Ventures in March, 2012 because of its national public records database. After the acquisition, the US Secret Service notified Experian that Court Ventures had been and was continuing to resell data from US Info Search to a third party possibly engaged in illegal activity. Following notice by the US Secret Service, Experian discontinued reselling US Info Search data and worked closely and in full cooperation with law enforcement to bring Vietnamese national Hieu Minh Ngo, the alleged perpetrator, to justice.  Experian’s credit files were not accessed.  Because of the ongoing federal investigation, we are not free to say anything further at this time.”

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Sep 13

Data Broker Giants Hacked by ID Theft Service

An identity theft service that sells Social Security numbers, birth records, credit and background reports on millions of Americans has infiltrated computers at some of America’s largest consumer and business data aggregators, according to a seven-month investigation by KrebsOnSecurity.

ssndobhomeThe Web site ssndob[dot]ms (hereafter referred to simply as SSNDOB) has for the past two years marketed itself on underground cybercrime forums as a reliable and affordable service that customers can use to look up SSNs, birthdays and other personal data on any U.S. resident. Prices range from 50 cents to $2.50 per record, and from $5 to $15 for credit and background checks. Customers pay for their subscriptions using largely unregulated and anonymous virtual currencies, such as Bitcoin and WebMoney.

Until very recently, the source of the data sold by SSNDOB has remained a mystery. That mystery began to unravel in March 2013, when teenage hackers allegedly associated with the hacktivist group UGNazi showed just how deeply the service’s access went. The young hackers used SSNDOB to collect data for, a Web site that listed the SSNs, birthdays, phone numbers, current and previous addresses for dozens of top celebrities — such as performers Beyonce, Kanye West and Jay Z — as well as prominent public figures, including First Lady Michelle Obama, CIA Director John Brennan, and then-FBI Director Robert Mueller.

Earlier this summer, SSNDOB was compromised by multiple attackers, its own database plundered. A copy of the SSNDOB database was exhaustively reviewed by The database shows that the site’s 1,300 customers have spent hundreds of thousands of dollars looking up SSNs, birthdays, drivers license records, and obtaining unauthorized credit and background reports on more than four million Americans.

Frustratingly, the SSNDOB database did not list the sources of that stolen information; it merely indicated that the data was being drawn from a number of different places designated only as “DB1,” “DB2,” and so on.

But late last month, an analysis of the networks, network activity and credentials used by SSNDOB administrators indicate that these individuals also were responsible for operating a small but very potent botnet — a collection of hacked computers that are controlled remotely by attackers. This botnet appears to have been in direct communications with internal systems at several large data brokers in the United States.  The botnet’s Web-based interface (portions of which are shown below) indicated that the miscreants behind this ID theft service controlled at least five infected systems at different U.S.-based consumer and business data aggregators.

The botnet interface used by  the miscreants who own and operate ssndob[dot]ms

The botnet interface used by the miscreants who own and operate ssndob[dot]ms


Two of the hacked servers were inside the networks of Atlanta, Ga.-based LexisNexis Inc., a company that according to Wikipedia maintains the world’s largest electronic database for legal and public-records related information. Contacted about the findings, LexisNexis confirmed that the two systems listed in the botnet interface were public-facing LexisNexis Web servers that had been compromised.

One of two bots connected to SSNDOB that was inside of LexisNexis.

One of two bots connected to SSNDOB that was inside of LexisNexis.

The botnet’s online dashboard for the LexisNexis systems shows that a tiny unauthorized program called “nbc.exe” was placed on the servers as far back as April 10, 2013, suggesting the intruders have had access to the company’s internal networks for at least the past five months. The program was designed to open an encrypted channel of communications from within LexisNexis’s internal systems to the botnet controller on the public Internet.

Two other compromised systems were located inside the networks of Dun & Bradstreet, a Short Hills, New Jersey data aggregator that licenses information on businesses and corporations for use in credit decisions, business-to-business marketing and supply chain management. According to the date on the files listed in the botnet administration panel, those machines were compromised at least as far back as March 27, 2013.

The fifth server compromised as part of this botnet was located at Internet addresses assigned to Kroll Background America, Inc., a company that provides employment background, drug and health screening. Kroll Background America is now part of HireRight, a background-checking firm managed by the Falls Church, Va.-based holding company Altegrity, which owns both the Kroll and HireRight properties. Files left behind by intruders into the company’s internal network suggest the HireRight breach extends back to at least June 2013.

An initial analysis of the malicious bot program installed on the hacked servers reveals that it was carefully engineered to avoid detection by antivirus tools. A review of the bot malware in early September using — which scrutinizes submitted files for signs of malicious behavior by scanning them with antivirus software from nearly four dozen security firms simultaneously — gave it a clean bill of health: none of the 46 top anti-malware tools on the market today detected it as malicious (as of publication, the malware is currently detected by 6 out of 46 anti-malware tools at Virustotal).

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