A sophisticated cyberattack targeted The Washington Post in an operation that resembled intrusions against other major American news organizations and that company officials suspect was the work of Chinese hackers, people familiar with the incident said.
Post company officials confirmed the broad outlines of the infiltration, which was discovered in 2011 and first reported by an independent cybersecurity blog on Friday. But they did not elaborate on the circumstances, the duration of the intrusion or its apparent origin.
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