Cybersecurity

Democrats Ignored Cybersecurity Warnings Before Theft

The Democratic National Committee was warned last fall that its computer network was susceptible to attacks but didn’t follow the security advice it was given, according to three people familiar with the matter.

The missed opportunity is another blow to party officials already embarrassed by the theft and public disclosure of e-mails that have disrupted their presidential nominating convention in Philadelphia and led their chairwoman to resign.

Computer security consultants hired by the DNC made dozens of recommendations after a two-month review, the people said. Following the advice, which would typically include having specialists hunt for intruders on the network, might have alerted party officials that hackers had been lurking in their network for weeks -- hackers who would stay for nearly a year.