Republican National Committee Security Foiled Russian Hackers

Russian hackers tried to penetrate the computer networks of the Republican National Committee, using the same techniques that allowed them to infiltrate its Democratic counterpart, according to U.S. officials who have been briefed on the attempted intrusion.

But the intruders failed to get past security defenses on the RNC’s computer networks, the officials said. And people close to the investigation said it indicated a less aggressive and much less persistent effort by Russian intelligence to hack the Republican group...