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Groups: Record number of data breaches in 2007 after TJX credit-card thefts
BOSTON -- The loss or theft of personal data such as credit card and Social Security numbers soared to unprecedented levels in 2007, and the trend isn't expected to turn around anytime soon as hackers stay a step ahead of security and laptops disappear with sensitive information.
And while companies, government agencies, schools and other institutions are spending more to protect ever-increasing volumes of data with more sophisticated firewalls and encryption, the investment often is too little too late.
"More of them are experiencing data breaches, and they're responding to them in a reactive way, rather than proactively looking at the company's security and seeing where the holes might be," said Linda Foley, who founded the San Diego-based Identity Theft Resource Center after becoming an identity theft victim herself.
Foley's group lists more than 79 million records reported compromised in the United States through Dec. 18. That's a nearly fourfold increase from the nearly 20 million records reported in all of 2006.
Another group, Attrition.org, estimates more than 162 million records compromised through Dec. 21 -- both in the U.S. and overseas, unlike the other group's U.S.-only list. Attrition reported 49 million last year.
But the biggest difference between the groups' record-loss counts is Attrition.org's estimate that 94 million records were exposed in a theft of credit card data at TJX Cos., the owner of discount stores including T.J. Maxx and Marshalls. The TJX breach accounts for more than half the total records reported lost this year on both groups' lists.
The Identity Theft Resource Center counts about 46 million -- the number of records TJX acknowledged in March were potentially compromised. Attrition's figure is based on estimates from Visa and MasterCard officials who were deposed in a lawsuit banks filed against TJX.
The breach is believed to have started when hackers intercepted wireless transfers of customer information at two Marshalls stores in Miami -- an entry point that led the hackers to eventually break into TJX's central databases.
TJX has said that before the breach, which was revealed in January, it invested "millions of dollars on computer security, and believes our security was comparable to many major retailers."
With wireless data transmission more common, hackers increasingly are expected to target what many experts see as a major vulnerability. Eavesdroppers appear to be learning how to bypass security safeguards faster than ever, said Jay Tumas, the head of Harvard University's network operations.
"Within a year or two, these folks are catching up," Tumas said.
The two nonprofit groups' 2007 data also show rising numbers of incidents in which employees lose sensitive data, as opposed to cases of hacking.
Besides TJX's problem, major 2007 breaches include lost data disks with bank account numbers in Britain, a hacker attack of a U.S.-based online broker's database and a con that spilled resume contact information from a U.S. online jobs site.
"A lot of breaches are due to inadequate information handling, such as laptop computers with Social Security numbers on them that are lost," Foley said. "This is human error, and something that's completely avoidable, as opposed to a hacker breaking into your computer system."
Attrition.org and the Identity Theft Resource Center are the only groups, government included, maintaining databases on breaches and trends each year. They've been keeping track for only a handful of years, with varied and still-evolving methods of learning about breaches and estimating how many people were affected.
Despite those challenges, the two nonprofits say it's clear 2007 will end up a record year for the amount of information compromised, because of greater data loss and increased reporting of breaches.
Both groups acknowledge many breaches may be missing from their lists, because they largely count incidents reported in news media that they consider credible. Media coverage has risen in part because of the growing number of states requiring businesses and institutions to publicly disclose data losses. Thirty-seven states, plus Washington D.C., now have such requirements.
Because of proliferation of such laws, "it may take a year or two before things stabilize and we can see what's really happening," Foley said. "If that's the case, then we'll know whether businesses are practicing better information-handling techniques."