With every telephone call they make and every Web excursion they take, people are leaving a digital trail of revealing data that can be tracked by profit-seeking companies and terrorist-hunting government officials.
The revelations that the US National Security Agency (NSA) is perusing millions of US customer phone records at Verizon Communications and snooping on the digital communications stored by nine major Internet services illustrate how aggressively personal data is being collected and analyzed.
Verizon is handing over so-called metadata, excerpts from millions of US customer records, to the NSA under an order issued by the secretive Foreign Intelligence Surveillance Court, according to a report in the British newspaper the Guardian. The report was confirmed on Thursday by Democratic Senator Dianne Feinstein, who chairs the US Senate Intelligence Committee.
Former NSA employee William Binney said he estimates the agency collects records on 3 billion telephone calls each day.
The NSA and the FBI appear to be casting an even wider net under a clandestine program codenamed “PRISM” that came to light in a story posted on Thursday by the Washington Post. PRISM gives the US government access to e-mail, documents, audio, video, photographs and other data that people entrust to some of the world’s best-known companies, according to the Post. The newspaper said it reviewed a confidential roster of companies and services participating in PRISM. The companies included AOL, Apple, Facebook, Google, Microsoft Corp, Yahoo, Skype, YouTube and Paltalk.
In statements, Apple, Facebook, Google, Microsoft and Yahoo said they only provide the government with user data required under the law. (Google runs YouTube and Microsoft owns Skype.) AOL and Paltalk did not immediately respond to inquiries.
The NSA is not getting customer names or the content of phone conversations under the Verizon court order, but that does not mean the information cannot be tied to other data coming in through the PRISM program to look into people’s lives, according to experts.
Like pieces of a puzzle, the bits and bytes left behind from citizens’ electronic interactions can be cobbled together to draw conclusions about their habits, friendships and preferences using data-mining formulas and increasingly powerful computers.
CLOAK AND DAGGER
It is all part of a phenomenon known as a “Big Data,” a catchphrase increasingly used to describe the science of analyzing the vast amount of information collected through mobile devices, Web browsers and check-out stands. Analysts use powerful computers to detect trends and create digital dossiers about people.
The administration of US President Barack Obama and lawmakers privy to the NSA’s surveillance are not saying anything about the collection of Verizon customer records beyond that it is in the interest of national security. The sweeping court order covers Verizon records of every mobile and landline telephone call from April 25 through to July 19, according to the Guardian.
It is likely Verizon records are being matched with an even broader set of data, Forrester Research analyst Fatemeh Khatibloo said.
“My sense is they are looking for network patterns,” she said. “They are looking for who is connected to whom and whether they can put any timelines together. They are also probably trying to identify locations where people are calling from.”
Under the court order, Verizon records include the length and location of every call, according to the Guardian.
The location information is particularly valuable for cloak-and-dagger operations like the one the NSA is running, said Cindy Cohn, a legal director for the Electronic Frontier Foundation, a digital-rights group that has been fighting the US government’s collection of personal telephone records since 2006. The foundation is currently suing over the government’s collection of US citizens’ communications in a case that dates back to the administration of former US president George W. Bush.
“It’s incredibly invasive,” Cohn said.
“This is a consequence of the fact that we have so many third parties that have accumulated significant information about our everyday lives,” she says.
It is such a rich vein of information that US companies and other organizations now spend more than US$2 billion each year to obtain third-party data about individuals, according to Forrester Research. The data helps businesses target potential customers. Much of this information is sold by so-called data brokers such as Acxiom Corp, an Arkansas company that maintains extensive files about the online and offline activities of more than 500 million consumers worldwide.
The digital floodgates have opened during the past decade as the convenience and allure of the Internet — and sleek smartphones — have made it easier and more enjoyable for people to stay connected wherever they go.
“I don’t think there has been a sea change in analytical methods as much as there has been a change in the volume, velocity and variety of information and the computing power to process it all,” Gartner analyst Douglas Laney said.
BETTER CUSTOMER SERVICE
In a sign of the NSA’s determination to vacuum up as much data as possible, the agency has built a data center in Bluffdale, Utah, that is five times larger than the US Capitol — all to sift through Big Data. The US$2 billion center has fed perceptions that some factions of the US government are determined to build a database of all telephone calls, Internet searches and e-mails under the guise of national security.
The Post’s disclosure that both the NSA and FBI have the ability to burrow into computers of major Internet services will likely heighten fears that US government’s Big Data is creating something akin to the ever-watchful Big Brother in George Orwell’s 1984 novel.
In most instances, Internet companies such as Google, Facebook and Yahoo are taking what they learn from search requests, clicks on “like” buttons, Web surfing activity and location tracking on mobile devices to figure out what each of their users like and divine where they are. It is all in aid of showing users advertisements about products likely to pique their interest at the right time. The companies defend this kind of data mining as a consumer benefit.
Google is trying to take things a step further. It is honing its data analysis and search formulas in an attempt to anticipate what an individual might be wondering about or wanting.
Other Internet companies also use Big Data to improve their services. Video subscription service Netflix takes what it learns from each viewer’s preferences to recommend movies and TV shows. Amazon.com does something similar when it highlights specific products to different shoppers visiting its Web site.
The US federal government has the potential to know even more about people because it controls the world’s biggest data bank, said David Vladeck, a Georgetown University law professor who recently stepped down as the US Federal Trade Commission’s consumer protection director.
Before leaving the commission last year, Vladeck opened an inquiry into the practices of Acxiom and other data brokers because he feared that information was being misinterpreted in ways that unfairly stereotyped people. For instance, someone might be classified as a potential health risk just because they bought products linked to an increased chance of heart attack. The commission’s inquiry into data brokers is still open.
Vladeck stressed he had no reason to believe that the NSA is misinterpreting the data it collects about private citizens. He finds some comfort in the Guardian report that said the Verizon order had been signed by Foreign Intelligence Surveillance Court Judge Ronald Vinson.
The NSA “differs from a commercial enterprise in the sense that there are checks in the judicial system and in Congress,” Vladeck said. “If you believe in the way our government is supposed to work, then you should have some faith that those checks are meaningful. If you are skeptical about government, then you probably don’t think that kind of oversight means anything.”
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