Russian hackers obtained classified information about National Security Agency cybersecurity programmes after breaching a personal computer used by an agency contractor in 2015, according to a person familiar with the matter.
The contractor, who wasn’t identified, took the classified material home, where Russian hackers stole it by exploiting vulnerabilities in Kaspersky Lab software that he had on his computer, according to the person, who asked not to be identified.
The breach, first reported by the Wall Street Journal, is the latest to plague the NSA involving the use of government contractors. Harold Martin, who was contracted to work
The contractor, who wasn’t identified, took the classified material home, where Russian hackers stole it by exploiting vulnerabilities in Kaspersky Lab software that he had on his computer, according to the person, who asked not to be identified.
The breach, first reported by the Wall Street Journal, is the latest to plague the NSA involving the use of government contractors. Harold Martin, who was contracted to work

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