JPMorgan Chase & Co learned details about hackers who stole the bank’s contact information for 76 million households and 7 million small businesses through a corporate event that it sponsors, according to reports in the US newspapers. The reports said the bank discovered that the intruders had used some of the same offshore servers to hack both the bank and the website of the JPMorgan Corporate Challenge. It was not clear when the bank might have discovered the problem had the hackers not used the same I.P. addresses to launch cyberattacks on both the bank and the Corporate Challenge race websites, according to the reports. The Corporate Challenge website, operated by Simmco Data Systems, was later taken offline after the hacking of the site was discovered. The hackers had originally gained access to the bank’s network by compromising the computer an employee with special privileges used both at work and at home and then moved across the bank’s network to access contact data.
