Community Health Systems says Chinese hackers stole patient data

Community Health Systems, the US hospital operator, said that Chinese hackers have stolen private information about 4.5m of its patients, the largest number of accounts compromised in such an attack, adding to long-running tensions between  the two nations over cyber crime.

In a filing to the US Securities and Exchange Commission on Monday, the company said it believed its computer network was hacked in April and June this year.

It said that forensic experts believe the attack was carried out by a China-based group using advanced malware and technology, though it did not specify the name of the organisation it believes is responsible for the hack.

The theft is the largest of its kind in terms of the number of people affected, according to the US Department of Health and Human Services, which has kept a list of breaches of unsecured protected health information since 2009.

Copyright: The Financial Times, 2014

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