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Known virus linked to China behind JTB data breach

Travel agency JTB

TOKYO -- The computer virus behind travel agency JTB's potentially massive customer data leak was identified Thursday as PlugX, a component of previous attacks on defense-sector companies that is frequently sent from China.

The breach, revealed Tuesday, may have compromised the personal information of as many as 7.93 million customers. JTB said on its website Thursday that customers who may be affected would be contacted by email.

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