Computer Systems Used by Clinton Campaign Are Said to Be Hacked, Apparently by Russians

Computer systems used by Hillary Clinton’s presidential campaign were hacked in an attack that appears to have come from Russia’s intelligence services, apparently. The apparent breach, coming after the disclosure in July that the Democratic National Committee’s computer system had been compromised, escalates an international episode in which Clinton campaign officials have suggested that Russia might be trying to sway the outcome of the election.

Clinton’s campaign said that intruders had gained access to an analytics program used by the campaign and maintained by the national committee, but it said that it did not believe that the campaign’s own internal computer systems had been compromised. The Clinton campaign used the program that was hacked to analyze voter data, but it did not contain voters’ Social Security numbers or credit card information. The campaign said it was confident, based on a review by outside experts, that getting into the program would not have allowed the hackers to gain access to the campaign’s internal e-mails, voice mail messages or other data.