Medical Data Becoming Valuable To Hackers

The personal information stored in health care records fetches increasingly impressive sums on underground markets, making any company that stores such data a very attractive target for attackers.

“Hackers will go after anyone with health care information,” said John Pescatore, director of emerging security trends at the SANS Institute, adding that in recent years hackers have increasingly set their sights on EHRs (electronic health records).

With medical data, “there’s a bunch of ways you can turn that into cash,” he said. For example, Social Security numbers and mailing addresses can be used to apply for credit cards or get around corporate antifraud measures.

This could explain why attackers have recently targeted U.S. health insurance providers. Last Tuesday, Premera Blue Cross disclosed that the personal details of 11 million customers had been exposed in a hack that was discovered in January. Last month, Anthem, another health insurance provider, said that 78.8 million customer and employee records were accessed in an attack.

Both attacks exposed similar data, including names, Social Security numbers, birth dates, telephone numbers, member identification numbers, email addresses and mailing addresses. In the Premera breach, medical claims information was also accessed.

If the attackers try to monetize this information, the payout could prove lucrative.

Credentials that include Social Security numbers can sell for a couple of hundred dollars since the data’s lifetime is much longer compared to pilfered credit card numbers, said Matt Little, vice president of product development at PKWARE, an encryption software company with clients that include health care providers. Credit card numbers, which go for a few dollars, tend to work only for a handful of days after being reported stolen.

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